Document 82Do6Y3yyKkZwa3aV4QgaddRm

Du Po n t ^n n o u n c es Sp e e d b l e n d TRAFFIC FILM--Oily.sticky dust and grime, baked by the sun into a hard film which soap and water can't remove. Speed Blend takes it off--quickly--easily--safely. The fast-working new No. 7 Duco Polish CARE WILL SAVE YOUR CAR STOP RUST-CHOKE Clean out rust and scale with No. 7 Ra diator Cleaner. More power, better engine performance. SAVE THE TOPI Restore the lustre, waterproof the top with No. 7 Auto Top Finish. You can brush it on in half an hour. It dries overnight. No. 7 is made by du Pont, the world's leading maker of auto top materials. QUICK CURF FOR WORN SPOTS! KEEP BRIGHTNESS BRIGHT I with No. 7 Nickel Polish for radia- tor.lampsand hardware. Made by du Pont. Touch up worn places and scratches on fenders, bump ers, tire carriers, etc., with du Pont No. 7 Touch-up Black. Brush sup plied in can. WAXTHE FINISH! After polishing car. use du Pont No. 7 Super-Lustre Cream to preserve gloss and protect finish against weathering. Much easier to use thail ordinary waxes. UNDER the Ugly, soap-and-water-resisting Traffic Film, the Duco finish of your car is as bright and smooth as when the car was new. SPEED BLEND whisks off the film with amazing ease. From drabness to gleaming elegance with little effort. Skilled du Pont chemists who discovered wonderful Duco perfected SPEED BLEND. They go together. SPEED BLEND never harms as do acid polishes or strong abrasives. Don't let Traffic ____ Film shame you. You paid a good price for car beauty-- enjoy it. Try SPEED BLEND. SEND FOR BEAUTY KIT-- 3 GENEROUS SAMPLE CANS The coupon at right (with 10 cents to partly cover mailing cost) will bring you the du Pont Beauty Kit, including 1 sample can of Speed Blend No. 7 Duco Polish: l sample can of No. 7 Super Lustre. Cream; / sample can of No. 7 Aulo Top Finish. E. I. DU PONT DE NEMOURS & COMPANY,INC..Desk D.M..General Motors Bldg., Detroit, Mich. Canadian Industries Ltd., Paint and Varnish Division, Toronto 9, Canada. Send me your Sample Beauty Kit for my auto. I am enclosing 10 cents (coin or stamps) to help pay the mailing cost. (Good only in U. S. and Canada.) Na me ..................................................................... -- Ad d r e s s ........................................................................ Cit y .................... ..St a t e .-. J VOL. XXV THE DU PONT MAQAZINE MARCH. 1`Ml No. 3 COSTLY INDIUM NOW OBTAINED BY ELECTROLYSIS 1 in-: world's first pound of indium, one ol die latest of metals, has been made in Cleveland, Ohio, by The Grasselli Chemical Company, a sub sidiary of E. I. cl a Fane dc Nemours N Company, Inc. ft is worth $7,000, nearly ten times the value of platinum, we are told. An interesting product is indium, with an intercstinghistory that dates back to the 60\% when a number of dements of this old earth were first d 1 scovcrcd u nder 11 n u s u a J c ircu in stances. In March, 1M1, Crookes, in England, extracted selenium from a substance obtained in a sulphuric acid factory. The residue was sup posed to contain tellurium, but when examined tinder a spectroscope, a bright green line was observed, indi cating the presence of a new element. It was named thallium. In the summer of 1 H6y F. Reich ant! T. Richter were working with some specimens of zinc blende ore from the Freiberg mines in Germany. Examin ing a residue resulting from some of their chemical processes with a spec troscope to find thallium indicated by a green line, they observed an indigo -hi ue line instead .Tims another metallic chemical element was dis covered, and it was named indium from the characteristic color lines of its spectrum. Incidentally, helium, too, was dis covered in 1S68 bv means of the spectroscope. Jamison and Lockvcr observed and identified this dement in the solar spectrum before anyone thought oi terrestrial helium and its now common use in aircraft of the dirigible type. And coincidence or not, the same Mr. Lockvcr also found indium lines present in the solar spectrum. But to get back to that pound of indium in Cleveland. What arc its properties its uses? Answering the first question briefly, it is a white, lustrous foctal, verv soft and ductile, slightly heavier than zinc, and you can melt it with a match. Uses? Well, as Shakespeare said, "There's the Spiling oF indOn ingr>?s Ik ?> jrc tweniv-is'-o wsli on-rs bosscD - common wJU-i lumhK'f lo -show coinpflri.;Cvc -!? - 1 h:'s.>' ir.g:jp arc worth $17.-00'.} rub." So far, commercialIv, it has re mained a laboratory curiosity, too expensive fur much experimenting. Discovery by The Grassdli Chem ical Compilin' of a method of produc ing it electrical h- puts the metal within reach of experimental use. The indium is obtained by electrol ysis. A current runs through a solution containing indium and causes it to segregate and deposit. Success depends upon very accurate temperature con trols and the use of the proper kinds of electrodes. Whether this discovery will unlock Nature'sstorehouse ofindium depends on whether its uses prove important enough to justify the price, according to a report to the American Elec- tra-Chemiea! Society by Dr. JL 11. Westbrook. He believes commercial uses will be developed, and says: "Like many other rare metals which only a few years ago were mere laboratory or scientific curiosities, and which today have a definite field of usefulness, indium undoubtedly has a definite field of application," There already is a British patent covering its use as a hearing metal. It has been mixed with another metal, gallium, to produce an alloy for fused quartz thermometers measuring tem peratures up to about i,800 degrees Fahrenheit. The first pound of indium came from many carloads of crude ores. Dr. Westbrook says this element is rather widely distributed in minute amounts in the majority of zinc blendes, in some tin ores, pyrites, siderites and tungsten. Helium got 2 job. Maybe indium will. This Ute-afternocm view of the varnish plant makes a picture o only the eight stacks silhouette* against the sky zjfie DU PONMa^az ino THEN AND NOW cuvruiu" ago itinerant varnish makers trav eled m wagons froin Town to town soliciting business Isom shop fo shop. Did anyone tired varnish'* Well, it could be made right on tlie premises preierahly in the hack vard. Oils, gums, solvents and the kettle? AN in the wagon, i lie on]y I'ecjuireineiit was a place to work and a lire. Fodav, varnishes of a superior type are made m great factories, where processes are sciemiikaHy controlled to insure both <|t:alicv and uniformity of products designed for particular uses. The illustrations on this page tell a story of progress, (.'.heirm/al science has wrought many transforniai ions in the methods of manufacturing products of everv kind. ji P.M.i Two me 1317 PO^Tulingn^ino "MADE BY MEN FOR MEN" W,,:x! S. Claus made his 1930 rounds* he left with discerning men's wear merchants the counrrv over a brand new line of men s underwear knit of pure Du Pont Rayon by Arrow and named ".Arrow Dv\ateen brads.' ' The ''brads'' part of rbc name tells you that this new under wear is athletic underwear. The "Dv\at:ceif part of the lurtie comes men the fact that: even ra\ on thread is vat dved before it is knit into fabric. Dyvutecn Grads were welcomed by merchants and h\ constimers lor sev eral very good reasons. In the first place, they're made by men for men. There's nothing sister--I ike about their Jive fast colors plus white). They've been given a new and individual "color tone" by alternating one bleached thread with one lived thread. And the fabric itself You've never seen anything like it because there's never been anything like it. A new, mn-resisting basket knit docs the tricky gives Dvvatcen the chamois softness and elasticity of cotton, plus the richness ol pure ravon. That elas ticity, that softness gave Dyvateen brads a good start cm the held. And that's not all. Arrow'* busi ness is the making of things for men 77m liar Arrow midcnixar, knit of pmr D/{ Pant liayon, offers style and comfort to the most d;.\ cr/n/innt/n* iceaver By JB C HARRINGTON1 10 wear. Arrow told Its tailors to give this new underwear masculine st vie and masers fine comfort. Thev did. They cut each shirt with full length lor comfortable snugness of fit; they put a new "panel seat" in each short anti said farewell forever to all binding at the crotch; duo equipped each short with a new rwel vc-stra nd elastic waist band, which will last the life of the gar merit and will actual])* keep both shirt and short: in place with our making vou feel as though you had a steel tape riveted around your midriff. And as a parting shot, they flat-stitched all edging to help each garment hold the srvle thev had tailored into it. * `There f" thev said, "Now every man hah a chance 10 dress from the hide out in a scheme of color ami i import thar ss as thoroughly mascu line as it ts practical and smart. That line was used in advertising the garments. It seemed to tell the whole srorv, except for the fact that tins Rolls Rovcc underwear is in the Chevrolet price class, so to speak - j dollar .1 garment, and ever \ shin and every short: wrapped mdividuaih in Cel lopham:. I here vou have it. Remember a few years back when the hoys came home |j`om col lege wearing running breeches and shirts? Thev si acted the srvle of sensible athletic underwear. Thev had the right idea. And young men todav are the ones who are buying the mnsr Arrow Dvvuteen brads. It's young men's underwear, free, easv and smart. (Alder men wear it ha .1 use their sous almost always are the ones to show them how foolish it is to wear am* thing old-fashioned when new things are a hundred per vent better. In locker rooms at colleges and at countrv clubs during r i vou're going to see more and more men slipping into their crisp linen and their custom-made eforhes over .1 foundation bearing the label "Arrow Dyvateen Grads. Pure Du Pont Rayon." They're that good. Pa c o : Tj uu-r m imI DXJ lPyN*Tafiac?a,zirie A MODERN CELLINIWINOLD REISS Who s tands in tin front ranks of the contemporary school of interior architecture and design Par: of a gioup of lh:rty five RlooU Indians hroimht down from Canada lo I rSa McD^fraoE it OI-ic mt National Park, posing for Mr, Rciis Two C3uns Whitif Calf- son of du' last BtacUcot chiv, was Ur * model for the Indian head on the buffalo moed By P. w . SAMPSON W^n o l d R Kisswil I not be cl ass iked. Name him one of the foremost interior decorators and you discover that he has goi\c to the Southwest to paint American Indiana, Name him painter, and you fmd him designing a piece of Jurnkure that you will Jive with later. Cali him designer, and you hud him busily illustrating a story Jor one ol rlic quality magazines. If you look' for him at his easel, vou'JI probably find him with his pupils. His studio is on the ground floor on Went 16th Street, New York City, and is painted an ultramarine blue...the name ul which is pmbnM v known to Reiss alone. His name is boldly lettered above the door in vermilion. Inside, work is everywhere. In onc of the stud io rooms a group of students stand, palettes in hand, before their easels, working under the guidance of Winold Reiss and his brother. It is another world from the one of automobiles, concrete, adding ma chines and nervous people that the door lias just closed on. It is a small firmament, revolving about Winold. Reiss, who seems untroubled by the avalanche of work that threatens to engulf the studio. W inold Rdss is a product of the Kuntsgewcrhc Schulu, in which the youngContincntaJ art student is given a thorough training in all the fields of artistic endeavor. This is unlike die American art schools, in which the student receives specialized training. Pac .e Po u r ^Me 1DU JPOT^T./(iuyci'jz. inn As we talk, there arc hall a dozen finished illustrations for the Crowell Publishing Company, fresh irom Reiss* hand, waiting to be picket! up. Before him on the desk of his own design is a specification chart he is making up which will show the sub tle range of colors going into the Muralart-covercd walls ol a new show place in New York. This inner room is given over to finished studies ofMexicans, Negroes and Indians. The raneDe oi his work is bewilderIng, until the Kimtsgewerhe Sell tile is remembered, and its aim to make each pupil Benvenuto Cellini-like* in his grasp of alt the tools of his art. From the k umsgewerbeSchulc ami Ins lather's studio, young Reiss went to the Royal Academy of Fine Arts in Munich, where he studied under Franz von Stuck. It had always been his ambition to paint the American Indian on his native heath; so it seems logical to sec the young artist hopefully dis embarking in New York in 191}. But the West was a Jong wav from the seaboard and Indians were not to be painted with oils, palette and easel alone. It was some years before he could satisfy his original ambition. In 1915 we meet him in the columns of the Muiiati An Collator, a. mag azine of the new art edited hv O. \Y. Wentz, This was die voice of the small hut vigorous group of designers and artists who interpreted the new Winoid designs, mf'-'Kir decorator, i-.'ach.-i. 1 low shall v.-.- OivUfy hi in ? age in a new manner in their art. The movement was born with the century in the studios of Vienna. During the World War its rising clamor was muted, until the mob horror ol anything with a German accent had died away. But there was merit in the art and design ol these jicople, and when the United States could look tolerantly on what they were doing, the public saw* how thor oughly thev liad caught tint new spirit and had set the rhythms of their hands in the same breathless tempo. Winold Reiss was one of the prime movers, and lie still remains in the forefront of the con tern porarv school of interior architecture and design. His dream of painting American In dians was delayed, but not abandoned. After some earlier trips into the Northwest, he was commissioned by Louis W. Hill, president of the Great Northern Railway, to make Indian studies in this country. All the Indian portraits shown were painted in Glacier National Park, Montana, and in Waterton Lakes Park, Alberta, Canada, in the summer of 19x7. Alto gether he did eighty-three, all of which are owned by Mr. Hill. lliesc have been on exhibition in the art centers ot the United Scutes, were shown in Munich, and of rhe one hundred examples ol contempo rary American art requested by the Swedish Government for the Stock holm FA position held during the past year, two were ol these Indian studies by Reiss. ` This work 1 have dime for Mr. Hill," Mr. Reiss said, "is part ot my plan. It is my dream and desire to paint full-blooded representatives of every American Indian tribe. Alto gether tliere will be three hundred and fifty when 1 have finished, and it ^ will he the onlv/ aevurute Onaileryj of these people when they have suf fered extinction, or lost their blood lines." Earle in January Reiss left for the Southwest to paint the Apache and Papago Indians. Many of these oils Reiss' portrayals of the American Indian; Left Yellow Head, a magnificent specimen of a full-blooded member of Ihe BldcOoot idhe Center--A family among the Brood Indians Right Heavy Ureas:, a Hl.icldoor squaw Pao e Fiv e flu: Cnllon I :f4r)Ufsnl m *'J-. w VoiC. -Y11c m* Wifiold iiffJ .;si-cf f -ib' ikusd in <ii-r.or<jhng <_ public p Ij c -j I riK yr.ind foyer Vnding to lh\: bjllmom of ?h*: I'1 o* .I Si. Y-icofR- ift Bii>-:4 Ivi:. I l.-rr oold kind vk an-'tou .V.jreusr* used (JM& mJ POITJagazme have gone into the new Steuben Club of New York, and show against a hack ground oi du Font M Liralarr. Tins [ironnet has entered into the decorative sthenic ul man v wellknown dubs, restaurant s and hotels that have felt the magic touch of this inauY hand. In the Hotel St, George in Brook [yn, for example, where the interior--a beautiful svmphoriy of brilliant lines --- had to withstand the wear and tear which is usual in a hotel, we find it used as a wall Cincriug in the mure impor tant public rooms and lounges. As Mr- Reiss OTHX said: "i)u Pont iVliiralart is the most valuable mater mi lor interior deco ration because of its wonderful sur face, which lends itself so well as a. background for ornamentation. It is easily cleaned and does not chip off the walls. '' Mr. .Reiss was the first to see the decorative possibilities of huhrikoid. In the first example of the new art in decorating in a public place in the United .Stares..the Old Grillon Res taurant iit New York--he used I ah~ rikoul on the benches. "Jr is an actual fact," he said, "chat these lasted for eight years before replacement was necessary, "A verv interesting thing ha ppened on my 1927 trip ro Glacier National Park/' Mr. Reiss went on, "I took along with me a number of pieces of Fabrikoid which I gave to the Indians. When they had proved to their satisfaction that it was waterproof they made it up into jackets and trousers, and used it for no end of things in thetr tents. I did. not have hall enough of it." To ask lYiuold Reiss what he has done brings a helpless light to his eyes. At random he plucks interesting things out of his crowded memory. There is so much done so much to he done. Another expedition to the West. Unfinished illustrattngcommis.si ons from the art editors of magazines. There arc color schemes, fabrics, paints, original designs for the public rooms of a new hotel. Mrs. ... is on the wire. Reiss answers it. He explains laughingly when he is through that a woman hail come to him for a design for a restaurant- "I gave it to her/' he says, "lovely pastel tones, delicate, fine. Now she savs: `Mr. Reiss, 1 didn't want it: in pastel tones, I want: it blue, like Mrs, , , . diningroom'. " He looks at his work, shrugs, turns his palms outward. So much to do -- -two hands to do it with, only, As I go out, the students are still at their euseds, working. The spirit of the studio is work. Before leaving, ! turn to look at the lettering on the door. There are a. few particles of dust caught in the hardened vermilion paint of thename. Winold Reiss must have painted that himself on a. windy Sunday morning when everybody else was at church. A cozy corner in the Tavern Club, Chicago, of which Mr. Reiss is architect md decorator. In the background mey be seen the dining room Pa g e Six <J/ie IIU PONTv4a^az i n& Cellophane keeps pj'mJutis Hi f cj i use by retaining or excluding moisture lro them at the manufacturer 11.I'i :..! !,,l lit: WHY YOU PAY GOOD MONEY FOR MOISTURE Bun/tsc you i't'i/!/ *? thur rhe condition of cow;ntitfittcs pmrhjsai deh-rn/.hn-i rheiv /ifness for nsc Wx B, C. ROB BINS You rarely think of buying mois ture and paying a price lor it- It is usually considered .ns fret as air. And vet vou demand moisture; in fact, put a premium on it. Hi is is true witli practically every purchase you make in your daily contact with all manner of retail establishments. You insist on eleven per cent: ol moist sire in cigars, forty-two per cent in cflipped beef and tvvcntv per cent in ladv-fingers. W'hy? Because those figures represent the average moisture content in smokable cigars, savory chipped beef and fresh Ltdv-fingers. Let unv one of these drv out and what happens? They are no longer fresh and appealing to the taste. They have become stale and undesirable. On tl?e other hand, there are prepa real foods, such as grab,nn crackers, which must remain crisp to be fresh, if fhev pick up too much moisture. thev are no longer appetizing' bo vou insist on a minimum of natural mois ture, iesr rhev become soggy and lose their crmndiv crispness, which is a sure sign of freshness h i crackers of almost all kinds. There is an old saving about trying anything once, but let the manufac turer beware who docs not deliver a satisfactory product for the price paid for it. He Las lost a customer. Therefore, makers of prepared foods In ve taken great precautions in times past to keep moisture in or out of their products as required, on their journev to the consumer's home. But with the natural tendency of every one to want to see what he or she btivs, there has developed the need of showing the product as well as protecting it. Since the buying public has proved to be "from Missouri," the producer Pa g e Si:vex wants to show his goods so chat no one can doubt their goodness. He is bringing them right out in tile open. One of rhe most interesting methods at his disposal is hv the use of corns parent moisture-proof Cellophane. This unusual arid virtually water proof material has been received enthusiastic ally by bakers, cigar man ufacturers, candc makers and other manufacturers concerned with the problem of moisture. The accompany ing il lustration shows actual examples ol i5i11 v a few among the many uses for rh is remarkable wrap. Bub it indicates effectiveiv the visible "open" pack ages that retain the right amount of moisture. The public demands visibility, and the manufacturer has supplied it. No longer does one need to wonder what a product n: a scaled package looks like when it i.s wrapped In moisture proof Cellophane, Cigars now c ome moist and crack ers crisp in this material that keeps the good tilings in and the bad things out. Pick out those Iigfit-colored, mild looking cigars, if char is the kind vou prefer. Choose the particular food product that looks must ap petizing to you. And remem her, moisture-proof Cellophane has made it possible to sec what you are Luring . me DU PONT^azine fdcil.brs for irapshoolinsi -irsd U:?rl an- corab!ncci .it lh<: du ^ont bhooiif.g ?tirlt mrui vi/ilmin^on D'.'i.i-.v-jr,- SKEET--A YEAR-ROUND SPORT 't k u h s die new ;dj-^e,iM>n sport, is so wei I know u to the A HkTioui shoot ing public that it needs no extended nurodaction. it is last hci.ummg u popular lorin of urriiicia! target siiu>r i ug am! n ambers ain<.'fig its devotees t hi msauih of people w ho never bef ore pul Jed a tripper to break a dav bird ib mix over a regulation tmpshuncing held. Skccf h diherent. TJiereiu lies its appeal. It has a closer tie-up with hunting and more ncarlv simulates actual hunting conditions than trapshoot ing vines. 11 and reds of skect lickls now J'f'cre is no c!os ai sen wm on chn birda. If you hk e niing .1 hooting, yon inl! his this new gnnn- m By J. H. OTTIiRSOX in use are developing quick and accu rate wing shots- Already there arc more than boo recorded skect-slioot mg organizations in this countrv and probably us main more unrecorded. This spurt is easy enough to gh e the beginner pleasure and valuable oractne in field shooting; difficulr enough to give the veteran hunter a Thorough test of his skill. It appeals partK idurfv to men interested in shot gun shooting in that it docs nut call for special equipment. Any gun th.ir lies the user and is suitable for held shooting will do. There is no limit us to size of gun or size of shot. Good scores have been broken with guns ranging all the way from the io gauge down to the little .410, The zo-gaugc- is practically on a par with riie popular 1 i-gauge, inasmuch as ease of handling the- former com pensates for the greater number of shot pellets of the latter. To those who arrange slaxt-shoot ing matches or take part in them, this discussion may seem elemental. But there are many novices in the game, and with the idea of rendering them some service and making the sport more enfovahlc to its older devotees, the f olk)wing suggestions are offered: Fa o k Eig h t Th,' uiyOvir <J < hold No:-- ih.r inr-Jion aI the t-,-/o f:jpi -ind lh<* nunb-:f-vrj in ivuu- 11,' ' tjfie DILI i^ONlMa^azme Sk f .ih * Ps y c h o l o g y Confidence is probably the greatest asset of a good skeet shot, Unless the shooter feels sure when he pulls the trigger that the bird is going to he broken, he will never become expert at this game. Confidence, of course, comes with practice in "catling his shots.'' If he misses one, be seeks the cause. Did he overshoot, or was his "lead" or "swing" insufficient to catch up with the birds' 'The answer is, more practice to remedy the fault, whatever it was. Concentration is as important as in regulation trapshooting. The skeet shooter should have only one thing in mind when he steps to the firing line-- to break the particular targets he will receive at that position. Those broken or missed at other stations should he forgotten for the moment. This mental attitude, while difficult to develop, makes for high scores. St a r t Sq u a d s w i t h a Go o d Lk a iy -Oi i* Sh o t A squad of skeet shooters may con sist of any reasonable number. Our experience, however, indicates that with novices not more than live can con ven iently shoot around the course, due to delays which always occur with beginners. With experienced shooters, a larger number can safely he accommodated in one squad. Much can be done to facilitate procedure by arranging the shooting order of each squad. For example, it is always .Mr. tuu.*n*r lu Pam U>fid> his gun ,il station 'j. According to rule, no qun m.iv b<- loaded until thi' shootfr is UanctinH if h<' firing position well to let a man who is a good, quick shut and who knows the rules starr the program. Then, with a little coaching, the others can casilv he taught to stand in their regular order, one hehmd the other, and step into position with the least loss of time. The onlv objection I have ever heard voiced is that with many shooters in line and only one set of traps, there is considerable waiting for turns. This is decidedly irksome during the cold months, particularly if there is no club house nearby. Ta r c .ins f r o m run Hig h Tr a p Frequently we all miss the first target at the No. i pus in on by over shooting. This target starts directly overhead and descends rapidly dm mg its entire flight. It should be seen well above the barrels before pulling the trigger hi order to place the shot load below and ahead of it. A nia juritv of right-handed shooters miss targets rbrown from No. i trap- house at stations i, 3 and 4 by over shooting them. While "lead" or "swing" is important *n breaking these, targets, the factor of elevation must also be considered. To swing below and ahead of the "bird" is the correct procedure to score a. "dead." Those from the high trap always descend. Th o s j ; f r o m St a t io n 8 ' Incoming targets from the high and low traphnuscs at this station seem most diflicult for the novice who lias not yet acquired the correct technique. He should stand naturally at the shooting position, face tin* "R.-adv1'' G-i|.?.iiri P.-n?! A. Curb?. <?t station b irdiiMU'S to th*/ u*p boy linn ih- nit art may G- o -I.-h -h -c it <my timr with n Lr m->t hv.: i-irccidf- Pa l i: Nin i. t taphouse I rum which the target will he thrown, and before calling "ready," he should bring his gun to bis shoulder at least once, swing ing ahead of an imaginary target to the approximate point where he expects to break it. When the real target appears lie should shoot as quickly as possible, for a her it reaches a point almost directly over his head, it is very hard to hit. The practice of throwing the gun to the shoulder at least once or twice has improved many a skeet score at station 8. The range is short and the pattern small; so hold close to the target, ami once more shoot quick! v- Tit l Dounu-.s Skeet double targets are not hard ro break if the shooter bears certain tilings in mind. There is plenty of time to break both "birds" within hounds. I he outgoing one is shot first from all 'doubles" positions, unless the shooter declares otherwise, and care should be taken to make this first shot good. The incoming target, meanwhile, is moving slower and is therefore easier to bring cl own; hut remember, the nearer the object, the smaller the area of the shot pattern. Make sure of the outgoing target, hold directly on the incomer, and von will store a "both dead." Th a t Op t io n a l Ta iu il t Ir is cas\ to shoot a round of skeet, make a good score, and then at station on png: 21 } cjfie OUT PONT^af/z/nc> THE HUMAN HAND WAS THE FIRST COMB S///ft then uhm has !united hoir to nuke better ones. MHIj o h s of tod.n V oomhs are made of da Pont Pyralni By MAX ROSFDALF Do you ever run v our hands rim mgh your hair to smooth it Jowim Of course von do. ft is a common prac tice among both mai aik I women, and actually an instinctive habit handed down tons hy primitive man. To keep his shaggy locks in order he used his hands, each linger represent: ing a single tooth of a comb that was af Jeast handy, if not perfectly designed for the purpose. falter on, nun contrived something Better. The earliest known comb was made of wood in Ego pt and resembled closedv the shape and form oi the human fund. As centuries rolled by combs were SimpJihed m Structure for greater utditv. (ic-mnne ivory \v,u used m making them, and the aixicnt Egyptians were very adept in con structing elaborately decorated ones fiif their "Shchas'' lo use. 'I'he hisrt.iry of comlv making in the l nited States also lias triune interest trig chapters. The first American combs were made in the i Rth centorv from such materia Is as \v me and horn. Later, in searching for substances that were not so brittle and that would withstand Jung usage, Pvrahn was tried and used with great success, Pvr.din, a plastic, is well adapted for making combs and thousands of other useful and ornamental articles, ft can he fashioned into almost any form with, the greatest case. Formerly Lyra Jin was made in ivory, shell, amber and mottled colors only. But in line with the present vogue it is being produced in many new and uoveln colors comparable in winery on! v with cliuse found in the rainbow. Tile Leominster, Massachusetts, plant id* the Du Pont \ iscoloid Com pany distributes in this countrv some i w'sxgcxK) combs each year. Thev are of every imaginable color, stvle and size... pocket combs, dressing combs, water-waver combs, decora tivc combs and many other types. One or the company's popular dis play ca.se assortments, together with a few styles and sizes time have proved to he ready sellers, is shown on this page. Each comb is enclosed in a. Cellophane envelope to insure clean liness. More information about Pyra Jin combs is easily obtainable. Write to the Du Pont Y iscoloid Company, } \o Fifth Avenue, New York City. Coiirccsy, Mciropalkdri Museum ut Ari Pa g e Ti.n Q/ic DU PONT^tlaga.zi.tto 11-..- heavy Iifi-.- ton M-.:- r-r t-, i- S hoshorn- uvl'::&! % ihc routi- :j( *>. ''/.m .Jui-j c. .1s!. fh-' d:v--:;ou im.-; sn.ihr.-sr.- ,v..nl c-l vin--,o Z2f-H.-Kiuii. S-c-i m;.-' n.i'i f.;- o.:-u-i-.s- lo: .u.-on of :hs- pro|cc; A....Pi'1 bon <. ofi'.lruciion Cioiapuny. C or.-ipE-s.-d r:: WinsiOii |S.*h .: fs 1Comi:iny C.ompVi>-d C. ,k>Iir Ph;i\;p-; Ccmp.iny. CO"pI.:.;d U pro:,. < C o C c-^ph-:-.-:! ' ....Joh;; 1 !hi>. A:i;;;Hiny L'?r',p!.-> ,.:ri I V.iUry -:rcr<. L ri.c:i->rt to. i.-j re-;. rlch-d. i*;mrnin.i to be .`irm.'ioH Apui l i'i...h I.j .-j s Dm-9"ity ti Am.'s. coroplOcd I.-iHif; iriii to b.' hn.-:.h.-<i Ap'i! 1 )! \ '-- h r: u ds. /n ',..cnp.:PY. . !.*.:' *d. i oro:r.*i- w;.D- i;* K* GfV-.'.j I -- 10 I::..' Id r. ' r v :ipr:ng 191 1 TO IRRIGATE 80,000 ACRES OF IDAHO'S DESERT Th< MmiJ'thJ i\.0/:// it/!I /u.\//re (/ it';/ter wpf'/j jor /orge .tixjs af h mb'vetapul J.trw Ln/J By J. II. MeGRATH Isuuo a nosv farming in the Wood River Yullev of Idaho lias lung suf fered for lack of water. Id I oca hues where the suppl v is adequate, agnailcure has Lutimhed, for the soil is fertile. Large crops of alfalfa hav, wheat, burlev, oats, potatoes and sugar beets have been produced. But thousands of acres are idle or partially so. 'flic}' need only water. The building of the American Fulls Reservoir on the Snake River, wirh its large storage capacity, made pos sible favorable consideration of plans to improve this situation. In 19?,^ a district was formed toetnbrace 11 ^,000 acres of irrigable laud, and biter a cuntract was negotiated between the dis trict and the Federal Government, for tlie construction of an extensive irrigation system, known as the Min idoka Project. As part oi this work, the Bureau of Reclamation is umsiructing, hv contract, a seventy-mi le canal extend ing from Milner to Shoshone and hevond chat point. It will supply Snake River water to about Ho,000 acres of irrigable lamb More than half of it, between Dietrich and Good ing, already has a partial supply; tlie rest, between the Snake and Little Wood Rivers, is new land now with out water right. 1 hecomplcte project, of course, also includes laterals, dis tribution ditches and various struc tures ret)Liired to deliver water to the farms. ft is estimated that this additional water supply will cost, approximately S>i an acre for the land now' partially supplied, and $92. an acre for the new land. The payments covering the con st! action costs figured at S->,000,000 Puii: E1.1:v e x will be distributed over a forty yearperiod, with no interest required imm the farmer. D>i-cunstnuTiuii purposes the work on this canal was divided inro eight section?*. The map shows the route. Letter designations along the line indicate tlie rcsjuvnve sections, and brief references to them will he n\ order here. Set lion A, beginning at Milner, was built hv the Dcrbon Construction Company, of Seattle*, Washington. A !th ough it was only a mile and a half long, nearly 160,000 eubic yards of lava rock were excavated in cuts up to forty-live leer in depth. Here the bottom width or the canal ranged from twenty-live to thirry-fiH.ii; feet. W instiin Brothers Company, of Minneapolis, Minnesota, constructed section B. This was an casth-movmg job for the most part, involving the removal of about 6.,poooo cubic yards of material, with comparatively lit tle hard pan and rock to interfere wirh progress- The maximum depth of the cut on tins section was thirtv-liv c feet. Sections and F were constructed hv the John Phillips Company, of San Francisco, Calilornia. In this region the canal line crossed a sage brush desert in which were found manv large lava lields, so that it was impossible to avoid making cuts dirough several rock ridges and out crops. Flic material excavated in these sections amounted to mure than a million yards, and 10 per cenr oi it was rock. Mittrv Brothers, of Los Angeles, California, had rhe task of building UNDER CONSTRUCTION--THE SEVENTY-MILE In the oval--Another Urge blast on the Mfttry Brothers contract, fn this shot 15,000 cubic yards of rock were broken [LE MINIDOKA IRRIGATION CANAL IN IDAHO fieiow--A rock cut on the Dcfbon work, where seams of soft material had lo be protected from the water to prevent erosion Above A steel-truss drilling hrch> spans the Canal in the Mit;ry Brothers Section. The iirtme mounts three <ii i!is left- A df.-ivihiM I'XCtlvjlol ot wort to? th D. i bon Construction Company Below Wm.-,Ilowm* into the upp<vi part of the Minidoka gravity extension main canal <7/ic DU Tiic two sections D and h. To ex ped 11e tIk - work, they maintained rwo con.siructnm camps seventeen miles apart. Altogether it represented more than _,6v i jinx* cubic Yards of earth, hjrd- Crete work will probably I>ecompleted August r. Tlie contract for section I has not been let, but the fob may he started some time this \ear- > / ',>*** r e* l / *< ac o c ... ........... ............................. ..... ........ -i J.'d p.-if-;:!.'! K:r; cor.'va.ion i.-r.-H n iCi-n^ r-Wrini : pan and rock, im ludisig761,0:10 cards oi rank. As this is written, soine mnniuiig remains to he done, her it ss scheduled tor completion by file first of A pnl. Six.non G, representing 1,141,000 cubic varils oi excavation, was under taken bv ] huts, Doug lit}' X. Jor.es, San Pram own contraitors, !<o,ooo yards <>f it were lock. The \h irriNi sn-kuudsen Cun pane, oi Boise, Idaho, has tile work tin sec tion 11 between I attic and Big A nod R.'-'c ik , where o.otw cubic cards oi hi v,i mi k '.'.'ere ciionumcrcd. '11'ic eun- (.-onstructiem work on the mam canal was begun in the summer of 1918. By April 1, this year, fiftvseven miles of it will he completed-- a rredituhk: record considering that the contracts have involved mov ing more than ^,780,000 cubic yards of material, classified rough I v as 75 per cent can h, 1 per cent hasdpan ami per tent rock, arid tint much of tire rock \va> a lava fotniation. I an a is naturally porous, and when sand wicked between other hr vers of vol came ash and 'vegetable matter, blasters have tiiein [roubles. In such materials powder gases cannot casil v he confined to do effective work. An interesting blasting practice was developed to file multiple shots eon ilevied in what is termed graded parallel scries; sec the sketch on this page- By tins means, using power line current with appropriate [tans formers, from 100 to 9C0 electric blasting caps weie detonated at one rime. 1 o complete this canal will require tlie use of approximately 4,000,000 pounds of* dynamite. Jt is one of flic toughest rock jobs any group ol con tractors has ever tackled. More than 2,,,ooo,000 pounds of du Pont explo sives... 40 per cent quarry gelatin and Real Cross I extra... were used last year. But filer will have served a good pur pose if tins and region ol Idaho can he made to bloom like the rose. Ackn uwledgmcnt is due to Mr. Ih B. Darlington, su|x-nnresident of the Minidoka Project, and his engineers for informal ion supplied and for the phutngraphs which have been re produced 1:0 illustrau: ibis article, FOR CONTRACT BRIDGE PLAYERS 7 host who ih/t'v rh-: joh of keeping avert- tri/l find this card aspccicdlr Indpful w .h u h Win n-.ijh.vi) has worked stumped and embossed, anti ate well out a bridge score card for contract equipped ft) withstand the ravages and for auction that will cause Ins of the bridge player who bites his name to he thrice blessed among the nails and crushes things in his hands unfortunate vu tuns who have to to relieve his feelings. keep Si ore. They reveal the scoring key when 11 used to be had enough at .menon, opened up, and contain all necessary what \\ ith pleadings of a sore thumb, informarion on the bidding and scor pour arithmetic, and a vehement ing oi contnu. t. protesrafion of the pain that the bur In passing, it may he well tv) men dtu: of scoring put upon one. 1 lien turn that thev are published for both -'ontrait ; a me in, with its d Terence kinds of hrivlge ami give the score of n values fur- vulnerable and not vul any possible hand chat can he placed. nerable, for undertrkk and o\efl.ru k Pads that go with the automatic v,1 Hies, and the alibis came so ihu. k scorer are made in the form of refills anJ fast that n was nutlinig um.snal .so that a new one can he inserted fur tlae pad and pencil to go around quickly when necessary. the Table twite ur.ril bv pnk c s s oi To bridge playing home should be diminution the most Weak-vvil led made, how much was bid, vulnerable without one of these ea.nls. Write to one or the most courage ms was tended out. Bur this new contract bridge scor ing card will change all that. Ymi detenu me how man v cricks were or not v ulnerahle, and believe ir or not, there is the score ready to put down. These tarils are cocured w ith handsonic, tdcaitahle F ahri kold, gold trie Bridge Specialties Company, in the heavier Ihii Id mg, Cleveland, Ohio, if you wish to make tilings easy for thc scorer w ho needs such an accrs sure and will appreciate its aid. P.u.i. Fo i'h it i-n ' Wtf DU POMT^I^az ino MULTIPLE-SHOT BLASTING MACHINES L:ist month "hj.ln ' electric jinng thrice,) Ik u ! their / twing s. Nuiv it .i o?/l\ jnir to fjre rhe ' \nhdtx" their turn clccrric blasting w t s first tli ought of, nearly 100 rears ago, fuse had not reached its presentday perfection, and ah<ate die safest mednid oi bring a blast was tu all a straw with line Hack powder, stick one end ol the straw tn the charge aru! fight rhe other. The hlasrer took a sporting change a.s to whetltei' he wuukl !>c able to beat rhe straw and reach a place of safety before die charge wonkf iirc. Natural! v, dec trie blasting, with almost an indefinite length of wire between the blaster aiul die charge, took a man hold on die imagination of those who were interested in saferv brat. One of the first blasting machines oi which we have any knowledge is shown in picture No. i. This con sisted of a circular disc which was rotated between two silk or chamois*kin pads, connected in die base of the machine to a senes of Leyden jars, which were ill sell urged til rough the wires to the blasting circuit. The bring device used with this machine consisted of two sparking points with grain powder between them. As dyna mite had not vet Keen invented, a detonating cap was not necessary. These high tension nring devices had to he connected in parallel; thex could not be depended upon to fire in series. W ith rhe development of dynamo edearit generators a \erv much mure dependable mid convenient arrangemcnr was possible and a different rvpe of firing device was evolved, consisting of a thin wire imbedded ln some easily ignited substance. This cuuld he used with a comparatively Weak current that Is, weak in pro ten rial or ability to jump across an air space and was known as a low tension electric blasting i.ip. In iNug Mr. IT Julius South ex hibited ar the Centennial Lxposinun in Philadelphia the iirst success!ul levs tension blasting machine made in rhis countrv. ft: w as a series wound dwiumo generator actuated hv rum my a crank whkh engaged a train ol gears to rotate the an nature. The current was short-circuited through the field coils and af completion of the rouriim of the crank the shore circuit was broken and the current' sent out on the firing line. Lniorrtinatch', we have no specimen of this machine at present in our collection. No. issa machine somewhat along this line, in which the armature is rotated directiv hv the unwinding of a coni around a spool, lids is a serieswound dynamo without the breaking switch, so that the current starts to I low out immediately the spool is rex i >hed, ami the machine Is there fore not dependable lor multiple-shot firing. No. i w as known as the du Pont No. O. It was actuated by means of a Hat coil spring which was wound tip with die kev ami sprung hv pressing a butron It was supposed to he good for rhree tu live electric biasring caps, but the mechanism was coo compli cated to stand up under the rough usage that blasting machines are likclv ro receive. No. 4 is an experimental machine of unknown manufacture which had one advantage in common with No. M thar is, the blaster could put his lingers in his ears when he operated _(>l, i<I! f,/ ` P.m.; r: l'i i i iFM Ufze I3U PONT^liaga 2: ine THE DU PONT MAQAZINE . tv:! Uh,! o-l: 1 r/ rph J hj ii.. L 0t! FUST ;>L NLMUUiS A CO., ba V. 1 : O V vi I . SJ.mf . f-I.O11 .*/. \,\.r \ 00. SSY MAkCli, 1f.Wl So O 1930 IX REVIEW' It is one of the hr notions of The Du T'.nt to keep the cus tomers mid friends of the company informed about tile activities oi the urganizatiun. And so with Pres til era du Pom`.s annual report for 1950 before us, it mav lx* interesting to sketch briefly some of the develop mem items making up part of the log hook of progress during an eventful year. I :nfa vorahle economic cund it ions i:i th is tours try Mid abroad during the entire period advaselv Erected busi ness volume, income am! earnings of jnunv industrial organizat n.ns, in cluding diedu Pont Company. "Some of tlx departments ami .subsidiaries," rnquoR: In an the report, "encountered sirhsr.mrial reduction in volume, which was counteracted to an im portant extent by increase in others." The ability of the company to manu facture ami sell a great varietv of chemical products pri >vcd u stabilizing factor. Despite the genera! dullness of business, the company continued its policy of expansion and widened the scope of it.s activities by acquiring 1 tew industries, developing new prud- nets and constructing new plants. 1 hrough the acquisition of die Koesslet and Hassl:scher Chemical f.ompauv in May, a large 1 iu iu her oi chemicals were added to the list ol products. These chemicals, not here tofore mam-fact tired in du Pont plants, are widely used in tin: chemical imliistrv. Among new products of inierest To cxplosices consumers may be men- tinned a new type of delay electric blasting v up; also lead azide and a new ignition mixture, both of wfucJi are raw materials fur the manufacture of electric detonators. 'The Dyestubs Department devel oped about forty additional dyestuffs which more nearly coin pie te the company's line of those products, a long wail a number of chemical specialties oi value in the lumber, steel, rubber and oil industries. Resulting from research work cm synthetic resins, new i\ pcs of paint finishes under the name "Duinx" were produced. These imi.shcs a re layin' dm mg and more durable than ordinary paints based on vegetable: oils. Isobm vl and other solvent alcohols were enveloped by high -pressme syn thesis, A pprov imateh'SiH^oooaouowas ex pended to increase manufacturing i;n i lines of several of the newer industries, to modernize okler plants anil to build a new- sec non to t lu ll ome office hiiilding in Wilmington. About half of this amount was re quired for the newer industries. The Cellophane plant at Old I fickorv, Tennessee, was enlarged and a new Cellophane plant was built at Rich mond, \ irginia. Additional capacity was provided at Belle, West Virginia, for the manufacture of synthetic ammonia and methyl arid solvenr alcohols. And two new tetraethyl lead units were built at Deepwater Point, New Jersey, making Juui units now nv ail a hie for the manufacture of that product. The company's policy of maintainmg large chemical and engineering research organizations in order to maintain and improve its position in the chemical industry has not. been altered. In addition to approximately Si ,7)0,<x>ocxpended lor chemical con trol to maintain quality and yields, approxi match* $q, 150,000 was ex pended ro improve present processes and products, to develop new ones and to accumulate fundamental infor mation which serves as rhe basis for developing new industries. Asa resu !c, rile company's plants and processes arc being constantly improved. At the end oi the vear there were ap prox i match* $1,000 people employed by the du Pont Coin pail)1 and its control led subsidiaries. On December 51, 1950, there were j0,692. holders ol debenture stock and 54,6.15 holders of common stock. During the year the number of com mon stockholders increased by 9,175, or 56 per cent. Regidurdividcnds were paid during tile vear to holders of the companvA debenture stock and common stock, tiie latter class also sharing in an extra dividend of 70 tents a share, paid January 4, 1 45.4. DU PI.AT Id OWNERSHIP Tin; Du Pont YHcoloid Company, a subsidiary of h. j. du Pont de Nemours W Company, Inc., lias withdrawn, as of February 5rd, from participation sn ownership of the DuplutcCorpora tion, the complete control of which has been acquired hv the Pittsburgh Plate Ciiass Company. According to a statement made hv C. K. Davis, president of the Vtscoloid Company, "this action has been prompted hv the fact that our prin cipal bush less is the manufacture and sate of Pyralin and we now feel that our maximum service to the safety glass industrr can best be rendered hv concentrating our efforts in this particular held. Wc have the utmost confidence in die continued success and growth of the safety glass indus try, ns great progress has already been made by manufacturers in perfecting this product and in having it accepted as an important contribution to public safety." THE FRONT COVER Va n is h making, an ancienr an, has become an industry of magnitude in 1 his country. Chemical science has modernized dm manufacture of fin ishing materials hv substituting for rulc-of-thumb merhods plant proc esses diar Insure quality control ai every sc age of proJucnoii, Tlie Cover picture 1 his month shows sonic of the equipment in the thin ning room of the newtlu Pont varnish plant at Philadelphia. Pa g e, Six t ee n cj/ie DU JPONT^tot/c^ ^ i ru* up here. Lust fall we became voters. I conduct a department in the local week I)' pa per just tor rlie im of it. In it l can praise those who have done good wnrk. And the curious thing is that our Jiie in the citv has also become richer. We Went Punting at Henley II is only lair to tell you now dial SUNNY MEADOWS FARM PHILOSOPHY By THOMAS DRHIER f'!.Mni-ViN Vil.J.UiK, Nh.SV A.M I'Si i I Kiv it Is Fun to Live a Double Life M a n y of the most successful Hooks about living in thecountry have been written by men who were forced to leave the cities because the) lost either their health or their imincv. Iliey became courttrv lovers by he roin ing eke haters. I can nor ijualdv for membership in their fraternity. 1 here is nothing wrong with tm health and there is no threat of lack oi money for food, clothing and shelter. 1 am a lover of both the citv amt the country. Mv wife anil l move from one to the other when the spirit moves. This is being written tti January in our farmhouse in New Hampshire. Pot weeks down in the city we had rushed from one engagement to an other. There were no loa ling moments. When an invitation came to attend a New Year's party at a Boston club, we said, "Let us run up to the farm am! burn brush, ami snow-shoe, and read and loaf with our neighbors.*' So, here we arc... Snug and 1, Katherine, our maid, ami Robbie, tile Airedale. This is Saturday and tonight six of our neighbors are com ing in for a supper of baked beans. 1 he Hunters, the Thurrclls and the Hatches are all keen!)' interested in agricultural extension work, in rlie Farm Bureau, and in whatever makes life on the farm tidier and more suc cessful. We will cmjov talking about what can be done to make the com munity and the state better. A Farm as an Insurance Policy Fiv e years ago we had no inten tion of buying a farm. The desire for a place in elie country was planted by Prank Palmer Spea re, president of Northeastern L diversity, who lunched in our suburban home one due and showed us photographs of an elk; farm fie had bough t. lie argued that every city dweller, especially those in die professions, ought to owm a small place in some country village, or a farmhouse. This place should be owned outright, with no mortgage or other indebted ness. Then, if one's income in the city stops, or one's health goes wrong, the place in the country is ready for one. Ex penses certainly do drop when one no longer has to "keep up with the Joneses." We spent a week-end with "Prexy" Speare in September of that year. He showed us the old Asa Thompson place. We fell in love with it instantly. The sun was lying in the meadow across the road from the house. The breeze in the pines was music. The waterfall had a magic of its own. Weil, before another week had gone bv we were owners of this place with its four hundred-odd acres. Ac lirst it was just another "insurance pol ice." We thought of treating it as a camp. But the farm itself had something to sav about that. As the years have slipped by, we have found ourselves more and more interested in the life vou arc not going to liud atmls im* hrilli anr in ihis department, fr is to Ik * a sort oi journ.d. It will tell about people and books ami things that interest nic for one reason or another. I sually it will be about simple living. One time m England we were du: guests of a multimillionaire lor six weeks. Eves'v luxury was ours. Even our theater Cithers wax: provided in London, ami in Scotland we had salmon fishing, gull, motors what we pleased. It was great fun. But when we (mailv left our hos pitable host we \vtilt up io Oxford, loa led tor a time in the college cards, and then tCH.sk that little palling steamer down the Thames. We had lunch at Wnibngford, at die Old George I mi, and reached Henley at nightfall. The Catherine Wheel Inn where we lodged was representathc of the candle-fight period. 'There were, as a matter of fact, no electric light* in all Henley. But die room, with its high heal, was clean, and die meals were piping hot and of excellent qualify. The next day we got a punt and floated here and there, enjoying the glorious luxury of simplicity at a case in money that was insignificant. How we relaxedf It was great to he free, to be paving our own way, to be living the Jire that was ours naturally. One docs not need much money in order to have a good time, (mod times a I wavs depend upon one's rh in king and feeding. Mo s t of us are so impatient. We have so little faith. We rush forward and grab when we ought to wait and receive gilts graciouslv. Margaret Fuller, driven bv her powerful mind, used to exclaim: "Oh, why cannot l lav more to heart the text `God is never in a hurrv?' Let me he more patient and confident." Pa g e Se v e n t e e n I <J/ie U PONT.^f?-zinc* QUAINT USES OF DUCO HOUSEHOLD CEMENT X ok M;vcrai wars wc havc indulged ' i"i i uf keepii: \i a ri:V< rd nf ^ ink* i:t die puamt and Liini.su.il uses oi Onto I h msuooki C. -C'llCiH . L..;dl iK'V; me was wml.igucu fur tmurc rdcr Line, Rci cm. x , while guiag ilu ougii t..ic ide, \vu a me acro>> these notes, winch ni;i \ hi- of s. unc unutsi to \ tun Tins ,u: L.-si vc gut iti: to a .start as a household p.u. kage more fhan a decade \ he i tivumsu iu cad A chemical show in New \ ork Lite w,w ii: i he : !hm. The on Pont cum pane had [eased space fw an exhibit, or' ;ts ps\j -Jm.is, jilt! a committee was dedigated to mh ua.r, arrange and d is- p!av a \ aricn or them, to greel vi>i- ti.no at Kjoch, answer paestions, distribute Advertising literature, and m> on. W htle laving emt the program nf work, one oi the members pointed out: that exhlhitiTb at tins show cus tomarily gave to -visitors some little souvenir in audition tu advertLing literature. I lewited cases and amused cam nigh i merest ir rhe plan tu bring tu it head the guiwr.wig *'\Vhat shall w-e giwv" Several suggest n ms wore made ami tamed down. J 'in.iHy, when scunmgl v everr suitable sample oi prod uer was negative! v considered, soinehudv said: "Let's fix up some small tubes ol* our waterproof cement. It can be nsed fw t:via v one lor sofite purpose, and the fact time it is Iran spa re nr and waterproof wolf recommend ii for manv uses where ordinary adhesives will nut kill the bill/' To make I lie storv short, this ad veftihing novelty was Selected, Jirfde tubes oi the cement were idled auil ol peep into hitr vvcurds .rhows thjt ibis >uih'i i/l C i.i //-if CiWii/iitii ;u l-u/f \chold m labeled appropriaieby, and so great was the demand at the booth (or them that the supply was soon exhausted. After the cheniK.ul show was over. Liters began to am w at Pariin. Polks wanted to buy more of that cement; in Let, the demand so lar exceeded anv* ex [xx tat ion that it was dtaided I'.j produce and sc 11 larger nibes tor household use. I bus a chemical prodtu t Je\doped oi'iginalJ'r lor industrial use was adapted for individual con sumend needs as a result ol its pinch hit'' performance as an ads ertising novel tv. Du Pont Household CenteiH, or Duco Household Cement as it is now caked, was brought to public notce almost hv ;iu Lent- And tlic hut rimt it is now sold hv dealers from one end <4 the coimtn to the other confirm* the judgment of the lommutcem.m \% ho spoke in its helm If when the one big problem was to find something suitable to give away at a New d ork show. 'rlAf!!!'. a'Ni In comparison with other du Pont products, ibis one 1m not been adxeriiSed eXlcnsj VeJy, Nevertheless it Conmiuis to nuke new friends m an e\er-widening u r Ic : and it seems a> hiixe the lautiltv ii we ma\ sax - ofb old mg fast to trade friendships, as helits a U'nlv gi ?od aifhesi \ c*. Dca lets who soil Duco CeJiiein. led us that their customers usually buy a tube of it Isecause they have some one mending job in mind, d'he ceiiient does its work well, and thev rexamimend it to their Inends wlin do the same thing. Personal advert is ing hv its users has given this ad lies i \ c its widespread [Hipularirv. In what wavs do people use this product^ )iH:\vould be bold to attempt enumerating i hem. And anywa v, this is not tJ>e phae lor u catalogue pres entation. But it max' interest sou to learn some ol the unusual uses. You know enough about the common uses vourself. Here's the first one in the folder: hi the Louisiana salt mines blasting is done hv the cap ami fuse method id detonation. A special type ol fuse is used because the ordinary kind has a tendency to discolor the salt. To a void this trouble, pyroxylin cement is employed lo hind together the i over mg material which protects rhe powder cure. Pebbles thn.ovn hv careless box s and hailstones often make small holes in greenhouse glasses. These places are difikmk tu re-glaze, and some florists repair the damage be cement ing in place a glass large enough to Jit over the edge* ul rhe hole. When a PA<I. PjlrHTI.LN <J/ie DU PONUftagrflzme pane is crai kcd, a small seal of cement m the center will link! the glass in tact and prevent it from shattering. The ease with which the adhesne mar he applied permits such repair work to he done from the inside of trie greenhouse even in the insist severe weather. \ small piece cal w<rod, when writ ten on in lead pencil atul eslvcred with Du k i Cement, is used as a label for identifying plants, dowers or shrubbery. The label will withstand weather conditions well and remains legible for a long time. In the archa olugical field there are manr uses for Duco Household Ce ment. It has been carried to all parts of the world on various expeditions. Man v fragi le relics are broken either he tlic excavators or because burial in the ground for several centuries has partially disintegrated them, k is in the work of reconstructing beads, howls and human skulls that the cement is imaluahle. One rare vase, found in .seveufv pieces, was restored beautifully to its original form. In our own country man}- pieces of Indian potrerv, pipes and other relics once used in i he tepees of the carlv Afnencan inhabitants have been dug out of mounds in Lancaster Count}', I'ertnsylvania. These relics are re garded as rare finds, because of their cxceptkmal state of preservation. Of course, mam of the fragile ones are found broken, and it is in piecing them together that Duco Cement has proveil its worth. .\ manual training teacher in a West African town tises the product to construct various articles in his Cass mom. He linds it to be the most satisfuctorv cement lor withstanding tlic extreme Condi turns of the African cl imate. Mam people are interested in the little things ol life. We know ol two gentlemen who specialize in initmscopic l h in igra phy. One of them has a record of writing for tv-six complete alphabets and lour letters more, which a comparatively simple calculation reveals to lx- exactly 1,100 letters, all tin one grain of rice! His writing, it is said, constitutes a world champion ship performance. 1 fie previous rec ord lor rice-writing was field by a Hindu penman; it was hut 400 letters. Disco Cement: conics into use lor attui him; the grains of rice to namecards for displav purposes and for general distribution. With die lid p of the adhesive, mainingenious people in Honda use to baceo pipe cleaners and sea shells to make die 411,-itmust novelties. Curios of this sort, in the form of birds, animals and reptiles, arc found on sale in main- gilt: shops. Tlic cement is also used bv taxidermists lor vari ous kinds of work m their shops. hntomoiogisrs, too, use Duco Household tie merit to mount minute insects on celluloid wedges for their permanenc collections. 'The transpar ency of the product gives a perfect vision at all angles lor microscopu observation. 1 uruing over a lew more sheets in in>r folder, we read that Duco Cement: has been utilized bv hnvs in male my boar and plane models; by a nurse to mend the porcelain part of an electric water heater; to patch stone in the Indiana limestone industry; to repair che rims of glasses, and to mend hath nibs and furniture. Others base used if to apply prints to novelty boxes and to parchment shades; to mend cast-iron radiator caps; to retread an insulator that goes inside a magneto plug lor an oil lead; to replace false teeth in broken bridges and to patch the tops ol automobiles, tents or e.times. If space permitted, we could con tinue the Its; indefinitely. Bin let us add just 1 Ill's One nun has been patching his shirts lor a number of years witli the producr. f'vulcntl v a disconsolate bachelor, he writes, "Duco House hold ( emeiit mends most everything but a broken heart." A ! ** v> u-n Arlk, ytirm- pip." r lycru'f'L Dut O HoM'-rhoici Cvmcnl and .1 !!f!s :!;i:n-u-`v ore .ill on su-cri lo m<i5.c fb-sr- .-jrr/acr.'v.- nov; I'AGE. NlXEUXN cjfie J3U PONT./lto<jazimi L-j 1 hr rn.'iJ -.vsiUfi'j $hor> of the j. B. HtrnCuy (..r>!!p.mY >;'j -.iI'fn`3.:o th-.i nicd irrion h rivimOin-'-J wills the rnummini MASS PRODUCTION IN /-bov-" Uipfunij thr fr<ifiir in Cu Bom -cmsmcf. Noli-- rhr oy r I: .id ^y-tcT- A SMALL PLANT of// i-.v..wj>!< of /f,\ A/n'd-iS is ofjcrc{f fy //y troyld Liryst ij/i/m'fih turct' of fj/ihrs m j I Is furnish the). R. Bunting Company oi Philadelphia, manufac furors of gliders, with g,y,..o funs i>J raw material. Out oi the an run he! Js oi die South come hum!reds of Kilos of the ' 'sou E hem ermine/' The Ju I hint (aimpnv supplie-s enamel for frames and v, uterproof, clear in ole hahnkoid for upliolstcrv. [ rum somewhere else conies special steel for spring coils. In a manufacturing sense these are raw materials, They must he fabri cated into glider parts. Not a piece goes into the final finished produet that the Hunting ( amipanv docs not fabricate in its own plain. This modem factory is organized on the continuous chain plan. Steel parts of the glider frame move from tile machines to an assembling point. 11 ere expert workmen rivet them to gether with air hammers, Next, tile frame is picked up hv an overhead convcvnr, which brings it to the enameling room, where it is dipped. Then if continues us journey to flic baking room. After baking, the frame, still on the conveyor, moves into another assembling room where it meets cush ions and upholstery sent down from the complete upholstering plant on an upper floor oi the building. W hen this assembling has been done, the gliders move out on the conveyor rrack to the shipping room, where they are boxed and packed into freight cars standing on the siding. 1 his elliciem: method oi production has been a main factor in making the J. R. Hunting Company t he largest manufacturer of gliders in thecuuncrv. The hall bearings shown on the opposire page are one of rhe exclusive fear tires of the Hunting product. They hear rhe stress of the forward and backward movement: of the glider^ tOr A corn.-f of hY sHtchmg roam, rhi: I .-ibaton! fallows -ire sewn ?:>y;,t. r Bela w -In il.c uOiohorifO ch'pa.'lmen:. Nolc rhe v-cni-Sun? cquiorr.cn? lunir ihc window. P.MiB Iwi-KIV 'J/ie 13<LT PONTJliaga 2; 1 no and cmndv eliminate aJl squeaks and noise:s while it is in motion. In recent years the popularity of die glider has so grown that it is now found both inside and outside the home. Its use in gardens and on open porches made a waterproof material i in pc rati vc. With Fahri k'uid-covcred upholstery, it becomes an all-weather article of furniture. The cushions tan remain out in a drivingrairpand,after the weather has cleared, can be wiped off without the slightest sign of damage. The same thing applies to the fnisne, which is weather-proof, for du Pont baked enamel is used on all the steelwork. Different glider sizes and various fabric changes make possible a choke of one hundred styles. The J. R. Bunting Company, s^th and Grays Avenue, Philadelphia, Pennsylvania, will he pleased to answer any inqui ries pertaining to its products. mAU iBB Above....IKp bulling jj-'id.'f aix jur-ic: pict;.' o! furrutur:; m -j <-:;n room Ifia irt Tlurii: t>UI-Waring h<ir.rrjC ,-diy .md no.vOrss. f.O-.-r .j it - .yj; jr.-Hrs of lu:ra in i .si i uhdvf mm SKEET-A YEAR-ROUND SPORT '{Cuuiiinn-J jrot; n' ? blaze awav at a target from the trap behind von and miss it by toutfeet. Why? Because what seemed an easy "straight-away" actually was not. The target may have veered to the right or left due to the wind. You fired quickly and directly at it, fat lingtoconsider its slightly deflected angle of flight. The range was short, and the shot pattern had not opened to hs fullest extent. Result..."lost bird." However, that is one of the tilings that makes sheet fascinating. Ke e p Bo t h Ey e s Op e n In skeei, as in trapshooting, the expert does not take deliberate aim. He simple looks at the taigec with both eyes open, concentrates on break ing it, instinctively swings his gun along 1 he line of flight and at: the tight instant, wirhout a pause, pulls the trigger. The exact spot to place the shut load cau onlv be learned by experience. Nearly all skeet targets require a slightly different "holding'* and "swing," just as rising birds do in actual Ik:Id shooting experience. TH AT N EW R IT LE Tl IR EE Referring to the shooting position, the following is quoted: ' "The shoisUT sh.dl mn r.iG ht\ gun to the Ok h iUIv t m shooi um.:J the target is seen in the air. When ruuh 10 Oh k h he sir.il 1 nikt his position at tile shouting station wish hi- gm ai an informal field position, lie shall then order the fa'gel. I he puller shall release the largeL at an;, time alter the order is heard, during at: indefinite period ui a hour live seconds, the relcree shall count am urge-t as hm wlurc the shotucr places his gun-lnm cm Ins shoulder to shoot he I ore the carget appears."' 'This rule, put in effect the first of this year by the: National Skeet Asso ciation, is designed to make the sport conform more eloselv to acfiud lie id shinning conditions in which the birds themselves furnish the element of surprise. Mechanical timing of shots never exists in field shooting, and should not be present in skeet, A\ e all have a tendency to "get a lit tle edge" on competitors by raising the gun in some cases before the target appears, and the new rule will do much to place competition on a more Pa g r Tvvi:s rv-On k even basis. Let's observe it carefully to make a good game better. General lv speaking, the novice should avoid shooting too quickly without a definite view of the target in flight. On the other hand, delib erating too tong usually loses the bird. With patience and practice almost any normal person can become u good skeet shot. Some of the coun try's best-known experts did nor display even average skill at first. Regular practice, a well-fitting gun and careful study of the effect of each shot will enable anyone to give a good account of himself in any company. .......... . No t e : The Trapshooting and Skeet Handbook, giving all detailed instruc tions necessary for the lavout of a skeet lick! with drawings and dimen sions, as well as blue prints, covering the construction of traphouscs for both skeet and regulation trapshout ing, may be obtained by applying to E. L du Pont de Nemours & Gom pany, Room 508^, du Pom: Building, W if mi ng t on, Del a w are. I' , *: Tw 1 n 1 i -Tv, u 7/fo 130 PONT^azmi? MULTIPLE-SHOT BLASTING MACHINES the machine, All that was necessary to lire it w;;.s ro push down an the rack bar with his foot. With the No. j, of course, he pressed the but ton with his foot and the machine did the rest. No. 5 was a larger machine of the same type as No. xs but possessed the same drawback; the current flowed into the blasting circuit as generated instead of being accumulated until the full power of the mil chine was developed. No. is another strong machine which was made by the SiciliansHalske Company, of Germany, for military purposes. This is a very interesting piece of mechanism, for k successfully employs the coil-spring method and a condenser coil for choking the current until it arrives at its maximum voltage. This particular machine was picked up on a battleTM field in northern France during the war by Captain William J. German of the Engineer Corps of the American Expeditionary Force. When he found it, two wires led from it to a bridge head, under which was placed a large charge of T.N.T., which the enemy had delayed a little too long in blow ing up. Captain German disconnected the wires and brought the machine home as a souvenir. It is good for about sixty caps, but is too expensive in its construction for commercial purposes. The ease is made entirely of aluminum with very ingenious devices for making it waterproof. No, j is a push-down machine made in England by the Sicilians Company and is of about the same capacity as the present du Pont No. 3. An interesting feature about this is the device for rotating the armature, which is on a vertical axis, by means of a thread similar to the Yankee screw-driver arrangement. No. 8 shows the Aetna No. 5 blasting machine, good for one hun dred holes, but it is so heavy that it requires a giant to carry and operate it. It is a series-wound generator which builds up so strongly, and O/ie DU PONTJfiaga^ine resists the thrust so vigorously, that it requires about the limit of one man's power to operate. No. 9 is of interest in that it is about the only machine which was invented specifically for firing blasts in Jeep oil wells. It was patented by Mr. Luke Umad water of liie American Glycerin Company in 190S, and con sists of a compound-wound generator in which the armature is rotated by means of a train of gears and a crank on the outside of the case, which is not shown in the picture. At the top of the case is a red glass window; beneath it, a lamp in series with the machine. To operate, the crank is turned as vigorously as possible until a light is seen through the red glass. Then the button shown on the side of the case is pressed and this sends the current our on the line. It is a. verv powerful machine and designed to overcome the resistance of the long leading wires necessary lor the type of work intended. No. 10 was originally designated as du Pont No. 1 and, while no longer made, was interesting as one of the first in this country to employ a lock for safety in blasting in coal mines, lids machine was supposed to have a capacity of from one to three holes, but being series wound and making a spark at the end of the stroke, it would not he considered permissible today for use in coal mines. No. 11 is the du Pout No. z G. M., rated at. ten holes, but good for nearly twice that number. It has a number of die improvements developed by the General Motors Research Labora tory for the No. 5 G. M. Blasting Machine. These include the twopoint clutch, a condenser and an eight-point breaker switch. It is a modern, all--purpose hlastingmaehinc, series wound, easily operated, and of long life. While no machine can be called fool-proof, this one is about as near to it as is possible in the present stage of electric blasting. No. 11 is an old du Pont No. 3 machine which has seen hard service. In principle it is very much like the machine devised by Mr. II. Julius Smith but it: is rated at thirty electric blasting caps connected in series. Ir was, in fact, the first machine designed for tiring a large number of holes simultaneously and thus embodies die three main ad vantages of electric bring: ability to set oil the shot from a safe distance, control of the exact moment when the blast is to lire, and the simultane ous explosion ofanv number of holes up to the capacity' of the machine. The No. 3 as at present made embodies a tin in her of the Improvements sug gested by the General Motors Research Laboratory along the same line as mentioned previously in describing the No. z machine, raising its former rating about fifty per cent. No. .13 is known as the du Pont No. \-A. Blasting Machine, rated at tiftv holes, it is a shunt wound generator one of the first of this type- and has proved a verv satis factory all-around machine for this ratingO. Up with the rock bar and then down. hard. The Uectr.c current generator IWs the shot. 1 h>s shows the: No. !2 du Ponl blnst-.riy machine No. 14 is die du Pont No. 4 Blast ing Machine which was formerly widely used by contractors on con struction work, but it has been largely replaced by the No. 3-A, which is somewhat lighter and quite as efficient. No. iy is the old du Pont No. y5 which had a generator similar to that in die Aetna No. 5 (see illustra tion No. 9) except that to render the operation of the machine easier, a resistance coil was introduced in the short circuit between the armature and the field magnets to provenr over saturation of the field magnets and the resulting drag or resistance en countered in shoving down die rack bar. The objection to this machine was that it was much too heavv to he carried around with anv degree of comfort. No. 16 is the du Pont No. 6, no longer manufactured for the reason that a machine better in every respect has been recently developed. This consisted of a shunt-wound generator of high voltage and a considerable volume of current, rated at one hun dred fifty caps in series, but with amperage sufficient to lire twelve caps in parallel. This was designed to help overcome thcelecrrlcal leakage which caused misfires in the center of a scries circuit. It was an expensive machine and much in demand during the war, because it was the onlv Americm-made machine capable of firing foreign elccrric blasting caps under adverse conditions. No. 17 is a still older du Pont No. y blasting machine. There were several points of interest about this. One was that it was a * pull up'' .machine instead of a "push-down/' To operate it che bluster stood on chc hasc of the machine, grasped the rack bar with both hands and pulled up with all his strength. This rotated the armature by means of a lever and a train of gears. In addition, this three-post machine was designed to overcome misfires in the center of a scries. One wire was supposed to run from the left hand post to the left hand end of the series of electric blasting caps, another from the center post to the center of the series, and a third from the right hand post to the right hand end of the series. Alien the circuit was properly con nected , the machine had a rated capacity of one hundred fifty caps. Unfortunately this method of con necting was a little bit too com pi i cared for many blasters. Accustomed as they were to a two-post machine, they won hi try to fire it from the two outside posts only, and no current would pass through the circuit a 1 all. Pa c >i Tw e n t y -Th r e e sJfut DU jPONX*//ta<?ti ^ i no U hen the.:)' found Hurt the center post nad to he cumjeered to either ol the outside posts, they frequently conk ,i hammer anu knackci! oil one or die oeh et of the outside jousts, I lie cast iron base with the protruding sidles s min rmjnmglv devised to connect noth a very tender spot on the j aside til ;t nun's knee jmril when he carried the machine. This was another di.sadv:mtape. Moreover, the machine was so heave that sf was frequent I v leit out m the qiiarrv c j i' on in |n in rain, wind and weather instead of being returned to the <>ibcc urshupaideruse. No. j H h the latest development of multiple-shot blasting nun hints. It was designed in the resea re h labora tory of the General Motors Corpora tion in Detroit. Blasting in a chines re presen tutive oi all the types de scribed here were turned over to this laboratory for study in developing a thoroughly modem and ellicient mas. bine. AH their advantages and disadvantages were analysed and nu merous ex pa .-merits made with a tie vice known as an oscillograph, which requires a post-grad u ate col lege education to understand. .Asa result'of innumerable tests with scries wound, com pou nd -won nd, sit on t-wound s pull-up, push-down, spring-actuated, and other types of generators, the wizards in charge o. the research laboratory dew.ided that the' serieswound generator actuated by a push down rack bar had notable ad vantages over any other type fur blasting machines. number ol types of armatures were tried, and Hie laminated type was found to he superior, although the laminated held core was less effi cient ihan the solid core. 'The clutch on the armature connecting the rack bar was red need from four points to two pomts in order I hat the current would be* sent out from the peak of the curve every time instead of from the vallev about half of the time. A onemicrofarad condenser in the circuit materially raises the capacity of the machine, hut the must interesting innovation is an eight point breaker switch. Its function is to utilize the current formeriv lost in the formation of a large and brilliant arc during the break necessary to divert the current from the field coils to the firing circuit. This machine, while much stronger than any other machine heretofore developed, is onlv a little heavier than the No. 3 see illustra tion No. ng anil mud) lighter than Nos. 5 and 6 and ever: the No. 4. It is not to he supposed that this collection represents all the multipleshot blasting machines that haw been invented or are in use at the present time. Possibly it discs not include more than half of them, it only claims to represent those in our col lection winch have survived the hazards of moving from plant to plant and oilice to ohiie. PROGRESS Th k progress of the world depends upon the men who walk in the fresh furrows am! through the rustling corn; upon 1 hose who sow and reap; upon those whose faces are radianc with the glare of furnace (ires; upon the del vers in mines, and the workers in shops; upon those who give to the winter air the ringing music ol' the axe, upon those who battle with the boisterous billows or the sea; upon the Inventors and discoverers; upon the brave thinkers. - Robert hiyynol!. cfijpp) E. I. DU PONT DE NEMOURS & CO., Inc. Gentn at Execu t a n Qifices, W 1 I. M I N G TO H , D Id I. A WA R Id All hujiiirie.s Rexariling dtt Pont Products Should He Addressed to the. Nearest Office ACIDS, HEAVY CHEMICALS, AQl'A AMMONIA, DR A' COLORS, ZINC OXIDE AND OTHER TIC MEATS OiasM-JJi Osiankai Com puny, Inc. --..-i-'.o.-uji iaj-t r.-, v j,r<ni ! ' : JLun'tr-, : . </rv < inf}, j.<!//<' f,r ; f :V , i ;;hl . ti-A- t f'Ol", />>r fruit fr-t, . >,< Uihl,,--- uru! u: n'mj jl n.:t iSiriiilnaham , Ala., ."him ! :t - A -.*: iiii-- '< n :. lio.sum, Mass., n h i.-r ii >:n / i, Hra.'iklyn, X. V.. i V: p: A v .-id e - < harlot If, X. (C. 'OO -fh-- x.r.'i < HI , ' UJl li--u i-r; Ckuiimat 1, ()hin. Sir-. WCani :-r < le%i'lantl, ohPo i:!s ii ! \%.;;!!! I >t*l rail, Muh.. 1 ' In 1-'. r.fs Cniif. - - k Xv--i:!:>- < **!*:. : -A . A 1 .\f*l*Tl:*aI Mr- * l' ' ' Milwaukee, WU,, 1:40 \\ > -4. { ..j ie I >! r-;-: Newark, N. J., AAh \'r:ndrrpnnl Sf rrrr \eu lluveii. i ainn., I . IkveK?u-.*r. New Orleans, t.a., 11-10.So. .\vvniu- New Xittk. X. V. 1)1-1 i.: S.a.---OtlC-a-.-O', wo; -l l t'uii c, SI.' ,,\i;n!j...-ii .\v<-ni.-- PaferMin, X. J., \\':-,i!. >tr'i : Ptnt.ulelphkr JCi,, .VaiO O;, ]*!:*.,' k--.lt; Pit tOniih, I'a.. sc/; i'if: ^. w Mi-nf.?ic3acr, N. V.. O Jvlv.-r i-i - Av.-m;'- Sun l'i ant I Ailit, ^ ^. _ Si. f.oiiis, M*., ao I'm-' St. Paul. Miiin., .C4i, H.-.u.pC.-n .\ , IJTIIOFONE OrasHeJIi Chemical Oiinpany, Ine. -.Sfi- aj!i`/iy-iii! uhart Iki'IiN Pijiim*ni K fUiimkal C.i., lac. New i r U.'|. Oleeelaii.l, Ohio, 4 i 1 IJ i.-k* :. Ikiiliiiih: Sew Yui'k, N. Y/1 i lCo.`i5a.!> AN 11YDKO VS AM MCIN IA, A NT I - F R EJCZ E M Ell I AN Ol, AND MKTHANOL Uu Pont Ammonia Corporation rU!ii Huhl/tlrtutK th ftUtk .'[if: A nfi-f-'r,..:;- M, hit.'iKii n h: iik if - i.ttti t!r h Wilminsilon, Del., I>u Uunr Huiklim; AOCA AND ANIIVDROl.'S AMMONIA Naiional Animmiia Company, Jne. \.{;i:;/`ir/<nix. in ftfim}, ! :, . i--iun rinM<:iit ht iiT'tu.:; u >;t! itihk t'nrv. Chli-aito. III., Ci.f So. M:,-liiKan H.-Mik'v.oi! I (is AmU'Ies., Calif., U> l .rainr-r.-ul Sir.-.-i New York, X'. V., : I 1 *;4i 1: u Philadelphia. P-a., Uimklni.l E>. O. San Franekco, i lalif-, 7 V Mum.! Stt; ,-t St"11 rle, \V;i.sh., X. inhJakx- Avi h ik - S|, l.iiu|.H, Mo,, .kjOflX. Hosulway ]5.-u'n: Tw j :n r> -fan:h SPECIAL CHEMICALS The Roessler & Hasslacher Chemical Company, Inc. Manufacturers of sodium, cyanides, peroxides, chlorine, heat-treating salts, formaldehyde, hexa methylenetetramine, gold, silver and platinum preparations, colors, oxides and opacificrs for the ceramic industry (pottery, glassand enameling), refrigerants, non-inflammable solvents, rubber accelerators and other chemicals for all industries. Baltimore, Md., .SOI O. T. National Bank Building Boston, Mass., 40 Central Street Chicago, 111., 230 E. Ohio Street Cleveland, Ohio, 607 Hanna Building East Liverpool, Ohio, 314 Smith Street Kansas City, Mo., 2018 Guinotte Avenue Newark, N. J., 1060 Broad Street New Orleans, La., 813 Louisiana Building New York, N. Y., 10 East 40th Street Philadelphia, Pa., 860 Drexel Building Pittsburgh, Pa., 935 Fulton Building San Francisco, Calif., 625 Market Street Toronto, Canada, 62 Richmond Street, West Mexico, I)-F., Cia. Mexieana de Productos Quunieos Roessler 8: Hasslacher, Cinco de Mayo No. 10, Apartado 2115 CELLOPHANE Du Pont Cellophane Company, Inc. Cellophane--Sheets and rolls. Cellulose caps and bunds (formerly Capes-Viscosc, Inc.). Yisking Cello-Tubing (Visking Casings). New York, N. Y. Executive and General Sales Offices 2 Park Avenue District Sales Office, 145 Hudson Street Boston, Mass., Little Building 80 Boylston Street Chicago, 111., Conway Building 111 West Washington Street Philadelphia, Pa., Liberty Trust Building. Broad and Arch Streets San Francisco, Calif., 351 California Street DYESTUFFS Dyestuffs and dyestuff intermediates. Rubber chemicals. Boston, Mass., 140 Federal Street Charlotte, N. C., 232 W. First Street Chicago, III., 7 So. Dearborn Street New York, N. Y., 8 Thomas Street Philadelphia, Pa., 126 S. Front Street Providence, R. I., 709 Hospital Trust Bldg. San Francisco, Calif., 351 California Street EXPLOSIVES Explosives for all industrial, agricultural and sporting uses. Birmingham, Ala., 601 Brown-Marx Bldg. Blueticld, W. Va., 607 Commercial Bank Bldg. Boston, Mass., 140 Federal Street Chicago, III., 1814 McCormick Building Cleveland, Ohio, 766 Union Trust Building Denver, Colo., Midland Savings Building 17th and Glenarm Streets Duluth, Minn., Hartley Building 742 E. Superior Street Huntington, W. Va., Suite 1004 Union Bank Building Joplin, Mo., 816 Joplin Nat'l Bank Building Juneau, Alaska, Room 503 Goldstein Building Kansas City, Mo., 902 Midland Building Miami, Florida, 120 N. E. First Street New York, N. Y., Graybar Building 420 Lexington Avenue Pittsburgh, Pa., Clark Building Seventh Street and Liberty Avenue Portland, Ore., American Bank Building Pottsville, Pa., 516 Schuylkill Trust Company Building St. Louis, Mo., 1182 Arcade Building San Francisco, Calif., 351 California Street Seattle, Wash., Hoge Building 2d Avenue and Cherry Street Scranton, Pa., 701 First Nat'l Bank Bldg. 207 Wyoming Avenue Spokane, Wash., 721-22 Old Nat'l Bank Bldg. Riverside Avenue and Stevens Street Springfield, 111., 716 Reisch Building Wilkes-Barre, Pa., Brooks Building FABRIKOID Fabrikoid for auto and furniture upholstery; auto topping, bookbinding, luggage, novelties, etc. Tontine Washable Window Shade Cloth. Chicago, 111. Fabrikoid Office. 2100 Elston Avenue Montana Street Station Tontine Office, 1411 So. Michigan Avenue Detroit, Mich., 5--236 General Motors Bldg. Newburgh, N. Y. New York, N. Y., 21 East 40th Street San Francisco, Calif., 351 California Street RUBBER PRODUCTS Dunlop for onto tops and curtains. Raincoat, fabrics, Rug Anchor, Ventube for mine ventila tion. All kinds of rubberproofing. Chicago, 111., 2100 Elston Avenue Montana Street Station Detroit, Mich., 5-236 General Motors Bldg. Fairfield. Conn. New York, N. Y-, 21 East 40th Street San Francisco, Calif., 351 California Street AUTOMOTIVE FINISHES Duco and a complete line of finishing materials for all automotive purposes. So. 7 Duco Polish, No. 7 Auto Top Finish, Vo. 7 Nickel Polish, No. 7 Touch-Up Black, No. 7 Super-Lustre Cream, No. 7 Radiator Cleaner. Chicago, 111., 2100 Elston Avenue Detroit, Mich., General Motors Building Flint, Mich. Parlin, N. J. San Francisco, Calif., 351 California Street INDUSTRIAL FINISHES Duco,,Duco Household Cement, bronze powders, collodion, leather belting cements, leather finishes, nitrocellulose and cellulose acetate and their solu tions, Dulux synthetic resins, pyroxylin prepara tions and solvents and a complete line of finishing materials for all industrial purposes. Boston, Mass., Everett Station 49 Chicago, 111., 2100 Elston Avenue New York, N. Y., 21 East 40th Street Parlin, N. J. San Francisco, Calif., 351 California Street MILITARY AND SPORTING POWDERS .4 complete line of military and sporting smokeless powders; also military explosives and black sporting powders. Wilmington, Del., Du Pont Building NITRATE OF SODA E. I. du Pont de Nemours & Co., Inc. Nitrate Division Importers and distributors of Chilean nitrate of soda. Wilmington, Del., Du Pont Building New York, N. Y., Graybar Building 4 20 Lexington Avenue San Francisco, Calif., 351 California Street Wilmington, N. C., 906 Murchison National Bank Building SEED DISINFECTANTS Bayer-Semesan Company, Inc. New York, N. Y., 105 Hudson Street MOTION PICTURE FILM Positive and Negative. Du Pont-Pathe Film Manufacturing Corp. New York City, 35 West 45th Street Hollywood, Calif., 6656 Santa Monica Blvd. PAINTS, VARNISHES, DUCO (FOR HOME USE) .4 complete line of paint and varnish products for all home and industrial uses. Boston, Mass., Everett Station 49 Brooklyn. N. Y. Building No. 26, Bush Terminal Chicago, 111., 2100 Elston Avenue Cleveland, Ohio, 791 Union Trust Bldg. New York, N. Y., 21 E. 40th Street Philadelphia, Pa., 1616 Walnut Street San. Francisco, Calif., 351 California Street PYRALIN, LUCITE AND VISGOLOID Lucitc, Pyralin and Arlton Boudoir Accessories. Toys, rattles, combs, gift articles, infants' sets, manicure sets, hair ornaments. Novelty and transparent sheeting, rods, tubes and beading. Also cleanable collars. Factories at Arlington, N. J., and Leo minster, Mass. Du Pont Yiscoloid Company, Inc. New York, N. Y., 330 Fifth Avenue Boston, Mass., Room 404 Charles Chauncy Building, 38 Chauncy Street Chicago, 111., North American Building San Francisco, Calif.. 745 Mission Street RAYON Du Pont Rayon Company, Inc. Viscose Process Department New York, N. Y., 2 Park Avenue Charlotte, N. C., 611 Johnston Building Chattanooga, Tenn., 609--611 Provident Bldg. Philadelphia, Pa., 1503 Land Title Building Providence, R. I., 941 Hospital Trust Bldg. San Francisco, Calif., 351 California Street Acele Department New York, N. Y., 2 Park Avenue 40 Worth Street Waynesboro, Va. FOREIGN OFFICES (To which inquiries about du Pont products may be addressed) Bombay, India, Jacob Sassoon Building Rampart Row. P. O. Box No. 1010 Buenos Aires, Argentine Republic Foreign Trade Development Office Av. Roque Saenz Pena 616 (Casilla 490) Hankow, China, No. 23 Tung Ting Road Havana, Cuba, 548 Edificio Manzana de Gomez Kobe, Japan, No. 83 Kyomaclii (P. O. Box No. 384) London, W. C. 2, England, Bush House. Aldwych Mexico City, Mexico, Edificio Cidosa Avenida Uruguay 55 (Office of Du Pont Rayon Company of Mexico, S. A.) Paris, France, Paris Development Office, 6 Rue Christophe-Coloinb Shanghai, China, Robert Dollar Building 3 Canton Road (P. O. Box No. 393) Tientsin, China, 52 Taku Road Valparaiso, Chile, Casilla 56-V (Du Pont Nitrate Co.) I. F. C. LINES International Freighting Corporation, Inc. New York, N. Y., 17 Battery Place Buenos Aires, Argentine Republic, Avenida Roque Saenz Pena 616 Valparaiso, Chile, Edificio Banco Nacional Calle Prat When you are in Atlantic City, New Jersey, visit the du Pont Products Exhibit at 1121 Boardwalk "SCRUBBED! Did you say you seruliheri your window similes?*" // YES, INDEED ....... . DU PONT TO NUN Ef you know HPIIATS the cheering thing about Ton tine window shades -- they can be washed. When they get soiled, just lay them out flat on the kitchen table and scrub them with soap, water and a brush, t hey come out clean and fresh and new looking. And window shades should be scrubbed. I hink of the dust and dirt that collect on them. Dusting won't keep them clean. Neither will a damp cloth. It takes soap and water and a real scrubbing to do it. 'routine shades are made differently from ordinary shades. That's why they're wash able. They're impregnated with the same basic substance that goes into the famous Duco finish on your automobile. It makes Tontine shades extra strong and durable, too. They won't crack, or fray or pinhole. Sun won't fade them. Rain won't spot them. Tontine shades come in a wide variety of plain tints, in printed patterns, and in smart corded effects. When you buy them, ask to have them mounted on Tontine Guaranteed Rollers. We have a booklet that shows a number of smart ways to decorate windows. Would you like to have a copy? Then just fill in tlie coupon, enclose 10c in stamps to cover cost of mailing -- and the booklet will be sent to you by return mail. SO) TONTINE HK6, U. ft. CAT. or*. THE WASHABLE WINDOW SHADE E. I. In Collide NemouK&Co., Ine. 100 <lu Pont Avc., Newburgh, N. Y. Enclosed is 10c in stamps, Please send me a cop> of "Artistic Window Treat ments." Na me .............................................................................. A mmiss l>. M. Consult the Classified Business Directory of your telephone Inuth for the authorized TONTINE dealer in your city, selected for his reliability. PRINTED IN U. S A