Document g29aRBp3Xkoz59EjprGDdnmNe

The illustration shows that universal favorite-- the Du Barry Pattern in Ivory Pyralin, made also in Shell Pyralin and Amber Pyralin. Sets can be acquired piece by piece, ifdesired, as all Pyralin toiletware is sold at leading stores everywhere in standard patterns, easy to match at any time. IVORY aura tin WOMAN'S dressing table is a true re flection of her personality. In dainti ness, charm and good taste, nothing could be more thoroughly appropriate than Pyralin toiletware. Made to give life-long service--in every necessary ar ticle from mirror to jewel-box; exquisitely decorated if desired, to harmonize with any color scheme. E. I. DU PONT DE NEMOURS 6c CO., Inc. Pyralin Department WILMINGTON, DELAWARE You will find the name "Pyraliny` stamped on every article. THE DU PONT MAGAZINE Yol. XVI MAIiCIf-Al'IUL, No. 2 What Explosives Users Say About Dumorite -l brief resume of reports we have received from customers who are using this new Du Pont dynamite ROM the number ami character of inquiries about adhered to in the sale of Dumorite; if it meets the customer's F Dumorite daily reaching tlio home office ami branch particular requirements and does the work as well or heller offices of the Du Pont Explosives Depart meat, one than explosives he lias previously used. It is recommended for might well believe that tins new explosive is destined to dissu diaii operation, but not. otherwise. place hi a large extent 40 per cent grades of dynamite which In the preceding number of this magazine? we announced have long been used in many agricultural and industrial Dinnunie, described the product and indicated the classes of opera lit ms. It is not because Red Cross Extra and oilier work in which we had found it could hi? used to advantage. brands are less dependable or less efficient, but merely that That was our 4'say so/' We are now in a |x>silh>n to tell you Dumorite, on a stick for slick basis, is equally efficient for most wlmt customers who have used this explosive? in their own kinds of work, is absolutely non-freezing, non-headache pro operations say about it. We shall quote below some excerpts ducing, and the customer receives from Ha to 40 more 1};{ by from letters of customers who have purchased and used 8-inf'h slicks to a case at the same price. Explosives user* a re Dumorite for various kinds of work during tin- past ninety primarily interested in Dmimrite been use "'one-third more per days. dollar/' whether it represents stumps blasted, boulders blown, One mine manager in jVlarylaml writes: yards of rock or earth excavated or what-not. makes jmssible "We are very well satisfied with I he results obtained with production economies that cannot well beovorlooked. Already your Dumorite No. 2 Dynamite, The rock is broken very sat the demand resulting from trial uses of Dumorite lias been far isfactorily. Our ``lines" are reduced from about `20 per ecu it beyond our most sanguine ex]xK:talions. to 10 per cent. We previously used 2If pounds of 40 per cent There are four grades of Dumorite. Numbers I and 2 arc Red Cross Extra per ton broken mid are now using 1}:{ pounds adapted for blasting in open quarries. for construction work of No. 2 Dumorite per ton broken, redyeing our explosive?* and farm needs where dynamites ranging in strength from -20 cost 2H cents per ton. It breaks as well in a small drift as in to JO per cent are ordinarily used. Dumorite No, 2 is recom a large one/' mended for blasting hi comparatively hard mck: also for underground work in medium hard ores where ventilation is good and when- the work is not under water. Pacific Stump ing Powder, is specially prepared for slumping operations in the northwestern pari of the country, and its sale is restricted A professional blaster in lower Delaware writes: far as I have used Dumorite No. l}il. lias given very good satisfaction, being as effective as 40 per cent Red Cross/' to that section alone. Dumorite No. 4 is adapted for use in bituminous coal mines where ventilation is good, wla-re per An engineer in charge of mad construction in a Virginia missible?* are not necessary, and where it is desired to obtain a county 1ms, since January 1, bought and used (MK)0 pounds of high percentage of lump coal. - Dumorite Nos. I and 2--a large enough quantity to enable Of course, there never has been an explosive that could mec! him fu form an opinion of its value as compared with 40 per every condition encountered in actual blasting practice, nor is cent Red Cross Extra and other brands of comparable strength. it likely there ever will be one. They all have their limitations, He writes: *T have been using it (Dumorite! now for the past and Dumorite is no except ion. We do not represent it as an sixty days in hard limestone rock on road work and find that all-purpose explosive. To dale, however, indications show it does all that you claim for it. My foremen claim they get that this new dynamite is being used with considerable econ better results from the same number of sticks of Dumorite omy in a wide variety of blasting operations. limn they do From Red Cross, ami in addition to that, it has Jt lias always been the policy of the Dn Pont Company to the advantage of not freezing. Since using it I have heard no recommend to customers the type of explosive that will do complaints from headache. I prefer a bulky dynamite like the best work at 11 to lowest cost. That policy is being strictly Dumorite as it seems logo farther with equally good results/' THE DU PONT MAGAZINE From Missouri conn's Oils testimonial about the use of Diiriioritu No. 2 in a silica quarry: '"Our attention was calk'd to your new explosive, known now as Diimonte, when it was first pul- on I lie market, and ufler giving it a thorough trial at one of our quarries, we are now using it. at all three--finding the results to be very satisfactory and economical.*' One of the best-informed blasting contractors in the Rea tile, Washington, district has this to say about Pacific Stumping powder in a recent letter: ".After considerable experimenting J find that this powder is one of the best, if not the best, that- I have ever h mh J--and 1 have used practically every known make of powder. "In .stump blasting it is very efficient, beeause It is a trifle? slower than your 2d pet cent. Stumping, and by reason of taking the slump out m a slower manner it thereby pulls the smaller roots wit h the main port ion, making a cleaner job. "J have used this Pacific Stumping in blasting Jumlpun, rock, concrete, gravel bunks and stumps in every formation of soil found in lids part of the eoiuilry, and 1 find that, hiking it slick for stick with your 20 per cent. Stumping, it is live per cent more cflieieu! in slump work and on a par with it in all of the above-died classes of work except gravel banks, where il 1ms proved to he even more above par limn in the ease of slumps.................Please lei me say further that one of its highest reeoinineiidal ions, us far as 1 am concerned* is that it is absolutely lion-headache," headache caused from using it., and Ibis feature alone appeals to the farmer/' His letter concludes, "I have never user I a more satisfactory explosive," "We tried out. Dumorite No, 2 recently in our quarry at S------- , and I believe Unit- on a stick basis it equals -1-0 per cent straight, dynamite. Besides being thoroughly satisfactory regarding strength, its non-headache and non-freezing quali ties arc very appealing to the quarrymeii, I believe this the most.economical and satisfactory 4(1 per cent dynamite made,'' The foregoing excerpt from a letter shows what the manager of a trap rock quarry thinks of Dumorite No. 2. The superintendent of a limestone quarry in Missouri adds this favorable com men l to the record: "Sonic of the original experimental Dumorite was .shot-at our quarry last November. Tiie result of these shots was very good arid justified further trial. Therefore, as soon as this new explosive was placed on the market, we started using it. "The results from Dumorite (No, ) continue to he eco nomical and very satisfactory. We have found that, we use less of this explosive than of that previously used, at a reduced explosive cost per ton of rock quarried. "Our men like the non-headache and non-freezing features. Tl is a, very satisfactory explosive: for use in our quarry." "We I lave been using your Dumorite (No. 2) powder in our work in quarrying limestone where we previously used a 40 per cent nitroglycerin dynamite." wriles the secretary of a quarry concern in M issouh. "We line! this Dumorite is giving us equal effects, cartridge for cartridge, that we got from 40 per cent N.G., ami is materially reducing our blasting cost," Tfu1 superintendent of a large quarry in New York Shite writes enthusiastically of "very gratifying results" obtained with Dumorite No. 2, In his letter lie says: `T purposely placed tiiis powder in u very hard blast of holes 32 t<x:t deep, and about 20 feel back from the quarry face, which had a very heavy toe at the hoi-tom. "We fun lid when tin1 steam shovel readied this pom! it had little difficulty penetrating through the blast. The bottom earno out in tine shape. "I like this new powder so well that I have plait'd an order tor some mure lu lie delivered in our next carload." Prom the vice-president ami general manager of mi opera tion in West Virginia comes I his statement: "The trial order of Dumorite was used in our .shale and clay quarry, ami our Mr. P......., who does all the shooting, is of the opinion that the results obtained were as good as any we heretofore obtained from I lie use of your Red (Voss Extra 40 per cent dynamite. The non-freezing ami no-headache uunhlies should appeal fo all users of dynamites," Another, from North Carolina. hut in this ease from one who handles explosives ns a part of a business in dealing in dimension stone for monuments, lie writes: `AS e want to Kay your Dumorite (No. 1} has given satisfaction with every one of onr customers; they say it is equally as good as the 40 per eent Met! Cross," An old mad contractor in Virginia, who claims to have used Ihonsainh of pounds of explosives in road construct ion work, recently tried Dumorite for slump blasting. Hi* writes: "I waul to advise that. I lind it as good, slick for .stick, as any 40 per cent, dynamite 1 have ever used: it rut the cost of blasting out stumps just UH per cent. Resides, there was no Next* a letter from down Mobile way. The president, of a corporation mamifaeturing turpentine, rosin and pine oil from slumps, writes: "We received a shipment of Dumorite (No. 1) some few weeks ago and arc using it for stump blasting for wood recovery for distillation purposes at our reduction plant at 0-----------. "We have given this dynamite a fair test in stump blasting and also for splitting stumps after they were pulled with stump puller and find il has good lifting power ami also splits the stumps in fine pieces. We have previously used 10 per cent dynamite and were always well pleased, hut since using Dumorite, we believe now that "it will be a saving in our wood recovery, eo?npared willi 41) per mil/' Here's one from South Carolina. The proprietor of a granite quarry writes: "For the past t hirty days we have been using your Dumorite No, 1 dynamite on all our pop shooting and take pleasure in advising you that we have so far found it cutirriy satisfaeiory." The production manager of a brick and tile manufacturing company in West Virginia gives this hit of evidence: "We are wry much pleases! with results secured with your Dumorite (No. 2). We have used *2,10 pounds hi our quarry and have had results which we consider were belter than those got ten with lied Cross Ex Ira 40 per cent. Il breaks up our stone in good shape and does not I brow the stone or shale over the quarry as did Red Cross Extra. It is pleasant to handle, giving onr powderman no headache. ' We have quoted principally from letter of explosisre.s users. For variety read what a Pennsylvania jobber who sells explo sives has to say: "We are receiving a number of very favor able reports on your new dynamite--Dumorite (No. 1). All of the trade that has tried it out so far say that its execu tion is very good. Continued on page 11 2 THE DU PONT MAGAZINE Glen Gardner Smokestack Safely Brought to Earth How a Du Pont technical man performed a difficult feat with explosives in a New jersey milage TIIIE factory ehimiicy iilustrated hare was built many years ago in flic borough of Clou Gardner. New Jersey. Although well eonslruetcd, it had served its day and was no longer used. Time and the elements had left their marks upon it, for the mortar was cracked and crumbled in many places. Evidences of disintegration were ap parent. from the base to the hood. In t his condition the stack was a cons I an I menace to the adjacent building ami to others nearby. The owners, tearing that some day a high wind might cause it to fall on one of these buildings., approached contractors on the question of tearing it down. Some of them refused to bill on the work because at the risks involved; others submit led bills, and the lowest one is reported to have been $1,100. Them explosives were considered. Would it he safe to fell this old chi ninev with dvnamite? The answer may be inferred from an announcement which appeared in a local paper `The Weekly Avalanche," November lib It read: "Stackto he Thrown! As a safely measure and m order to make improvements for Smith's rage and auto mobile salesroom a brick stack, about eighty feet high and six feet square a l base, will lie thrown at Cleu Gardner, N. J., -Friday, November 181 h, at. 2 p. m. The stack will he dynamited by the Du Pont Company under the direction of its representative Air. O. V. Weaver of Easton. Pa,, who is a specialist in handling high explosives. This notice is given in order to allow engineers, contractors ami others interested to lie present,--M.F. and II. A, Hunt. Scores of people gathered to witness the unusual spectacle. Engineers, contractors, quarrvmen, tanners, business men and others closely waldunl every step of the work, for it was realized I hat t he job was an exceptionally difficult one. There was only one safe way for the stuck to fall. Holes 1 inches in diameter, spaced 1 inches apart, were drilled IB inches into the base of the slack on three sides. The position of these holes aml the sequence in which they were; loaded and fired are shown in the accompanying sketch. Because the walls were so badly cracked, and the hood particularly, there was a possi bility that, the shark of exploding dyna mite might cause the stack to split in half and fall rontrary to I he plans. On this account Mr, Weaver exercised more than ordinary care ami good judgment in loading the holes, lie didn't want to shake the stuck too hard, even though ii was necessary to blow out enough space with the first shot to make a safe place for loading the second round. One-half stick of dynamite was loaded in each of the three holes and fired electrically. This first round did its work and the second round of four holes was similarly loaded and fired, further weakening the base of the stack on the side toward which it was destined to fall. The third and final round consisted of four holes each loaded with a half-slick of dyna mite and an additional two-pound madcap charge placed in the center. When Ibis shot was set off, the stack, still intact, begun to lean away from the building, then, gathering momen tum, if fell swiftly into the open field just where Sir, Weaver had planned to timer it. Felling this slack required in all -six pounds of BO per cent lied Cross Extra dynamite. The total cos! Idr the explosive and blasting caps was less than $3.00. The owners were h o well pleased with the result of the work that they offered Air. Weaver a sum of money for his services. They were not, a little surprised when lie declined to accept it, ami explained ilml Du Tout Technical representatives were employed to do such work gratuitously as a part of the l)n Pont Company's service to its customers. The Glen Gardner stack shot is just one of many instances we might cite to show the re liability of Du Pont explosives for work requiring the most ea refill treatment. A hope The (Hat Gardner stack teasa menueefo buddings nearly/. Top-center--This dose-up shows the unsafe condition of the hrlck*nor/,\ eraekvdfrom the base it) the hood, Mr. II'caver is loading the first fwtmi of holes. Left J second after the third and final shot the stack ts safely on its seat/ to earth in the predetermined direction. Above--After the fall- Just a pile of brick. TIIK DTT FONT MAGAZINE Do You Know How Chilled Shot is Made? You'll be itUetesied to know n-hui takes place, in the Winchester shot tower il K main plant of the Winchester Ry PETER P. CARNEY desires a quantity of chilled shot in a hurry. TRepeating Anns Company in New Ilaven, Conuerlicul. spreads over eighty-one acres, Twenty- From this large cauldron flows a continuous stream of molten metal into a metal sieve. Our illustration shows the metal pouring into the sieve and a workman stirring three additional acres are used for coal storage. The ranges if. The hot lead may he seen falling like a stream into the and magazines, so essential l,o such an organization. cover wafer 151' bet below. The pellets are formed after passing IIP! acres. Thus Winchester City spreads over 711- acres. through the sieve. Just, how long it takes to dull the Rising to a height of nine stories in the heart of this eily, shot we do not, know, but is a square, concrete we do know that when struct u re t lie W i u - the pellets reach the Chester shot tower. A water, which cannot be visit to any department more than a fraction in the Winchester plant of a second, they have can i u >11 m 1.1 >ro vu hit crest- become solid spheres of trig cm account of the remarkable roimduess. rna ny prod nets made From the tanks of there, hut we doiihl if water the shot passes anyone* will (ind a place through a drying ma to spend a more interest chine, then to conveyors ing hour than in the? tall which take it up several building you see here. stories in the shot tower. When the Eastern Here a big revolving Handicap Trapshooting screen separates the Tournament was held in tough hits of lend from New i la ven, last sum the shot, 11 is the series iner, the shooters were of thirteen assorting invited to inspect the tables of glass which lower and its workings. automatically select the The* shooters lost, no perfect shot and discard lime in arranging parties any having the slightest to inspect the place. Of imperfections. The shot the thousands who visit flows from a hopper onto the shot tower annually, In the hmrf of Winchester City stands this famous shot tuner the very slightly inclined few realm* that 50 Ions glass tables and the per of shot are made daily, fect. shot gather sutticiciit momentum to roll down the table or that tin? shot is made, untonelmrl by hands, after the liars ami jump a gap at the base. Every shot passes over a series of lead are put into the great melting eauklron on the topmost of these tables, one placed above* the other, and only Ihe shot floor. Starting there, several interest mg operations follow. of }>erfeel form can survive the elimination tests. Any im We lielieve that with the help of I lie illustrations which perfection, such as rough edges, slows up the rolling shot, so accompany this article ththearteaitdedrrowpilsl goeftf. ainmtoorethdeegfianpitse aidnedagoes hack into the melt about, the workings ing pot to be made over again. of the shot tower From Ihe assorting tables the perfect shot go into big 'than we can picture revolving drums with screens in which the shot is sorted into in words. the various sizes. Each sized shot goes through to its proper Exceptional pains place. The func are taken in manu tion of the rollers facturing shot. Every on the outside sur size of chilled shot face of the drum has a different form is to keep t he shot ula--which is some from slicking in thing the layman can the hoi es. One of not seem to under Idle ill us!.ra t ions stand, Nor does the shows Ihe screens average man give and rollers doing much thought to the their duty. number of pellets t hat When visitors see make an on nee of shot. t heseexael ing tests II requires `PP,', pellets of No, (i chilled shut to make an ounce, they can under- or d,55S In make a pound. No, 7? > chilled shot lakes h 15 to s l and why Win make an ounce or 5,5^0 to make a pound. You can compile chester shu thas your own figures on the number il takes to make a ton. such aceuraev and The first operation starts at I la* fop of tint tower, which is uniformity. Jl ishe- IH7 fee! above the ground. Into the cauldron, illustrated, cause of I hers! rum*- are placed I he bars of lead. The huge bars dissolve in a minute. dim! ry mechan Tin. sen, from cinch a shc/rt r t>j Lad Il is possible to melt 100 tons of lead daily, which means ical precision of the drops 17Jj feel into the water Hint HM> lon> of shot can be turned out daily if anyone 4 TJIK 1) !' FONT AI A <5 A / IN E :;a i S:i A > *.;:.'* ffi ' ; . >= * MK1 SHMRBNMI'11. 1 ..v'.*.. V.* a; t - iffpjr will ..'j jfiBSS iXrtA # if.. B4i AV 4PI v:: vi*TM. Ml- 1 ... .*;/v . *. * ' f ran kta-i*.- $ & 1 *rr*2 iQfflK]' z*iit.. *1* ;\ * : iW :1 a. ' ''"riw,W Sh ... \t\ >* iV-- ; - "V . ,Ifs.Srw.*v3 3>:.Im/' !'. {Jf; MH less.-. : WNHVS AV*S--' A...A,.-V^ :4,SBSHHUS p7 HP1 hverp shot passes oner a series af these assorting tables ehmery used for sor t ing the shot in these iwu opera! ions. After the shut, is sorted, it passes through polishing machines and then goes into the great storage tanks. There are sixlyiwo of these on the ground floor, each holding !>l > tons. The shot is weighed into the tanks hy automatic weighers and likewise weighed out in 2.3-pound lots. The machines am he adjusted to weigh any amount. Shot is prepared for shipment in hags. When five pounds, or the amount, desired, runs into the hag, it automatically The perfeet shut next passes through a series uf big revolving drains irifli srreens in tvhivh the pellet* ate sorted in!a the various sires. The roller* on the outside of the drinn keep fhr .shot from- *1irking in Ihr hole* of the serven inovis into position several i nelies to the left, wliere it is sewed up arid is then ready for the marked. Finally the shot, is tested for mundness ami hardness. A certain number of shot of every hatch is put through a testing machine, and if approved, the hatch is allowed h go for no product is permitted to he shipped unless it is right. It costs the Wmeheslcr Uompany $7.i0,00h annually to inspect ils products. During the war, the company did not have one lot of goods rejected hy the United States Government. Viscolac--A New, Economical Lacquer One coat usually equals three of other pyroxylin finishes--ami dries hard in an hour YNTlL now there have been well Hy E, M. FLAHERTY made them so viscous that they could not t defined fields fur both varnish and Assistant Director of Sales - pyroxylin lacquers as finishing ma Chemical Products IHvUkm 1C. J . da I'orst <iu NYntimrs < Co.. I nr. terials for manufactured article*. The limits he handled efficiently in factories. Our prob lem, then, was to devise some means of putting a greatly increased a mount, of solid, of these fields have been determined both hy the working quahlihii-foriieng material into our lacquers without making I hem ties of each and the finish produced hy each. Varnish 1ms been more viscous. Idealizing the importance of this work we placed used when1 a. finish of "built-up" appearance was desired with a all the resources of our Research Department at t lie disposal minimum nuinher of coats and where certain inherent, qualities of the chemists to whom this problem was assigned. The hi of a varnish finish, such as a prolonged drying period, wen; no! ves ligation la.st.cd over a year, during which lime Imndrcd.s important. Pyroxylin lacquers, on the other hand, have been of experiments and tests wen'made. Finally, resells were used to give a tough, waterproof finish, quick-drying and obtained which showed that the problem bad been completely highly resistant, to accidental marring, hut requiring the solved, and in \ iscolae we now see the successful culmination application of many coats to equal the "built-up*4 appearance of this research. of only one or two coats of varnish, Viseolae is essentially a nitrocellulose lacquer in which, Beeau.se of its quick-drying properties alone many manufac by a process we have discovered, there has lieen incorporated turers have wished to use pyroxylin lacquers on their products, over three times as much nitrocellulose and other necessary but have hesitated to do so because perl laps five coals of the ingredients as is usually found in Midi Iactpiers and yet the lacquer would be required to give a varnish-like finish, 11 icy easy llowing quality of the lacquer is unimpaired. Yiscolae, often askor I us to put more solids into our lacquers so that, f herefore. can lie used for protecting or improving the appear after the solvents evaporated a heavier film won hi he depos ance of any metal or wooden objects on which varnish is now ited, thus eliminating the labor ami expense involved in addi used. ASTt.li only one or two coal s it will produce a finish equal tional applications. But this we were unable to do because of in hotly to that of tin1 same nuinher of Croats of high-grade the properly of the film-forming ingredients in the lacquer of varnish and in addition lias many other desirable qualifies. imparting a high viscosity to solutions made from them. 'This A varnish finish usually requires several days to apply because viscosity was already at the highest practical working point, of the time consumed while each coat is drying, while a and any further increa.se in the solid content of these lacquers Continued on }mjc Id 5 THE DU FOXT MAGAZINE Advertising Pyralin Toiletware To a hand-picked circulation of more Than twenty million wall-to-do buyers ADVERTISING X uJTeoiive when il Bv A. ii. BKHWALD life worth living and has the means to pay /m iiKikes people want the product advertised. II. is productive when it Advi rli-sina Mimakii'yntlin. Kepi. E, f. iIj Pont Jh Ni'nmur* & Co., lnr. for them. This is the market, the only surely productive market today, which makes them yd that product. It is the is covered 100 per cent by Pyralin adver "gets" that. Ic c h*|> the cash-carrier running; they are the cur tising in the seventeen magazines known to be read by the rency uf business...."wanIs" are only I.Ik * promissory notes. most progressive, .substantial and dependable elements of t he Normally, when all classes of the public are spending freely, consuming public. a large proportion of the "wauls" created by advertising Study this list, of Pyralin magazines to be used during 11)22: develop quickly into "gets/9 hut today this process is retarded Ladies Home Journal Vogue by ihe inability of certain classes to secure, or their reluctance Good Housekeeping Harper's Bazar to part will:, the necessary 1'uuds, Cosmopolitan Atlantic Monthly Faced wit h I hi* sil.ua I ion. the maun tael urer who now wishes Red Book World's Work to get the usual results from his consumer advertising imisl Photoplay Review of Reviews list: unusual care in preparing every dement of his campaign. Theat re Harper's And, obviously, his firs! and chief concern must be to produce Vanity Fair Century the maximum number of ''gels'* by confining his appeal to House & Garden Scribner** those people only whose -troutiny potrer is backed up by a but/- Town & Country tin/ pun', r that is ample. Otherwise, in so Caras tin* immediate Notice how each of these magazines has been selected with needs of his dealers are concerned, part of the circulation of some special reason in mind. Hero we iiud that Ladies' his advert ising will be wasted. Home Journal and Good Housekeeping, undoubtedly ihe We wan I our dealers to studs' flit1 11)2-2 advertising campaign greatest, women's magazines published today. I lore arc Vogue for Pyralin toiletware from the purely selfish Uaiidpoitit of and Harper's Bazar, undeniably the style arbiter* of America, what tin y will get out. of it, 1 lie cut ire eumpaign was planned windi, groiijsed w ith Vanity Fair. House & Garden and Town from the dealer'* viewpoint and should prove to be exactly k Country cover, like a blanket, the leaders in wealth mid adjusted In his requirements. In many ways we consider fashion in every community. it the most impressive campaign that any inainifaclurcr of Co,sinojM>]itiUU Red Book, Photoplay and Theatre a re read by toiletware ever placer! before the American public, and in the millions of women to whom the adornment of the person and uiic way thut is n o w of vital importance, we do not think it of the home are vilal interests. At least.one of "The Quality eoisld po>sihh be improved--all iff its srllimj /sneer is run- Group ' (Allan! ie,, W orbfs Work, Review of Reviews, Harper's, rf nfrated in fhost hums and upon those propiv trim appreciate Century, Scribner's) is read hi nea rlv every well-to-do home. fittc foilihrarc and ran afford to hup it ;YOIJ'. In every state but Nebraska, the combined circulation of The seventeen nn t iounl magazines illustrate! ami listed here Pyralin magazines is far in excess of tin; number of families are all well known to our dealers. The cireiihi t ion of each of with incomes of 201)0.00 or over. We venture io say (hat these magazines was given t he most minute* seruliuy before it there are very few people in your own eoinuumity who are was finally added to um list. In each ease the deciding factor good prospects for Pyralin toiletware who do not read at least in (lie selection of a magazine was net. how many 'Svaniers," one of these magazines. This gives you an idea, of t.he effect but how many "getter*" the magazine reached. which this advertising will have in increasing your own sales We are now in posi and pmfilxon Pyralin. tion to tell c\ery Each of the six full- Pynihrj dealer that page atIvert isenlents our lB'i`2 advertising in the Pyralin cam will be read in his city paign, most of them ly all of the well-to- pmi led in four colors, do families from which is thoroughly impres he gets his best and sive and convincing. most constant busi The merchandise it ness, If all of these self is strongly fea families were ga 1 liernl intoouo ehy Pyralin tured in an environ - maul that always sug City it w o u 1 d gests elegance and make a community good taste. The copy of ,7,7 tHUJOO 1 Kiincs emphasizes the dis and of more t Ii a n tinctiveness, high 20,000,001) people. quality and complete And business is usefulness <if Pyralin good, it must be good, and stresses the set in Pyralin < 'ity, for building idea. We in it then? a iv no poor. will gladly send any Every one of its mil dealer who asks for it lions of homes is a a folio showing all of place of comfort ami the advertisements in retineincjiI. Every full size and actual one of its J u nity mil colors. lions is accustomed to In this same folio t he luxuries that make These magazines sell Pyralin to the people, bed able to buy it Continued on page 11 6 Tli K i> I' PONT ;M A (i A / l N E Tunneling Under the Catskills for Water New York City is completing the 18-mile Shandaken tunnel which will tap a new source, of supply [Itlsinapossibloin llicshort space allotted this article to Hi vna noraprehoriBiveideaof this undortakingor theprog ress that is being ramie by the contractor. A visit aJbne By E. C. FEE RIDAY Manager. Comrat:tors' Section engineering stuff in charge and the contrac tors engaged in the prosecution of the work. can give one an approximate idea of ila scope, ami own then it!! magnitude could not he fully comprehendedunSnssa Btav of days or even weeks worn mudo. It is, tin re Rxpl:.ive.s 1 lerwrlment E. I. du Pont <Xv. Nemours A'. Co.. In.c'. The contract for the Shandaken Tunnel was let November If), 1917, to the Degnon lore, hoped that our readers will understand that this article is doseripli ve only and that lack of space prevents it being treated in other than a cursory way.] Contracting Company, who curried on the work until Novem ber 10, ItPiO, when the Shandaken Tunnel Corporation became HERE is probably nothing which signifies the advance responsible, for its completion, and l-he lien Contracting T of nations more than public improvement, for in its achievement the people participate in ami enjoy its benefits, Probably no other city Corporation look actual charge of construction. In order that I he reader may have some idea of what, tins particular unit of work comprises, in the United Slates has more rea let me say that it represents the son tu he proud of its accomplish excavation and lining of a tunnel ment tlmu New York City, for 18 miles Jong, rangingfrom 174 feet nowhere in this country or abroad to 047 feet underground. Roughly has public work enterprise con the size of the tunnel is approxi ferred such advantages as the mately that of a single-track rail- citizens of New Aork ami its road tunnel. which, when com environs now enjoy. Anil it has pleted, will be horseshoe in section, been done within the last (went concrete Ikied, with inside di years. mensions of IT 6" in height by The city, with its ever-increas 10' 3W in width. It provides for ing population, has recognized its a uniform slope of 4.4 feet per transit problems and lias solved mile except for the northerly 8Jd> some of them. It will continue to miles which is depressed, making do so as the city grows larger. But this portion a pressure tunnel. in no other way Juts its cure for its Engineering plans for this work population been more clearly involved the sinking of eight demonstrated than in the provi shafts, the deepest of which is sion it has made mid is making to 647 feet, nearly one hundred feet supply its citizens with an abun i leeper than the Washington monu dant supply of pure water. ment is high, Thirty years ago if one had even A further idea of its magnitude suggested that il would he practi may he grasped when it is stated cal to supply the city with water that this tunnel construe! ion from the Catskill mountains, a ret | ii ires approximately 600,099 hundred miles or more away; that cubic yards of rock excavation, the water emild he made to flow lOO.UOO cubic yards of earth ex through an aqueduct, free from cavation, 00,000 cubic yards of contamination, under tunneled concrete masonry, and 445,000 mountains and siphoned rivers, barrels of Portland cement. lie would have been considered a Tim Shandaken Tumid is the til subject for an observation ward longest continuous tunnel in the In a psychopathic hospital. Bui uarld for any purpose. the Catskill water supply is a real This unit of work is being prose ity--an accomplished fact. New cuted under the direction and York City today enjoys a larger and purer water supply than supervision of t he Board of Muter Supply of New York City. any other immieipalily on the fare of the globe. The engineering organization comprises the following per A trip to the Catskills from whose watershed this water sonnel: J. Waldo Smith, ( hief Engineer; Tlmddeus JMerrimati. flows cannot help but convince one of its purity, where the Deputy Chief Engineer, New York City, and George G. Esopns creek, clear as crystal, is one contributing supply for Holiness, Department Engineer with headquarter* at- Grand l lie Ashokan Reservoir, which forms the main storage basin of Gorge, New York; R. W, Gausinan is Division Engineer in this wonderful system--the Catskill Aqueduct. When the charge of the Allabeu or Southern division, and Win. Ik Shandaken Tunnel is completed it will divert, the waters of linnter is Division Engineer in elmrge of the Praltsvilie or Schoharie creek southward into the Ashokan Reservoir, insur northern division of the luiinek ing a yaw much larger water supply from this additional source. The staff organization of the Elen Contracting Cor]*>rat.ion. The original plan involved an estimated expenditure of the operating company, is in active charge of Thos. S, Shep- $160,000,000, but did not include service to all the boroughs. pmh Vice-president and General JV1 anager. with M. R. This included, brought the total estimated cost lo$l 75,000,000. Keefe, General Superintendent., R. H. Keays, Assistant The work was undertaken and is now in its final stages. The General Superintendent, and G. II. Hines, Chief Engineer. total cost will be approximately $180,000,000. which is within The active, working organization includes Mr. Luther $.3,000,000 of the estimated cost. Considering that a great Dennis. General Shaft Superintendent in charge of the ex portion of this work was let during the World War, when eavation, with the following shaft superintendents: Shaft public work of all kinds was more costly oil account of condi No. 1, T. E. Bird; Shaft No. , F. L. Irwin; Shaft. No. 4, tions beyond administrative control, this is a remarkable ac Philip Pagliaro; Shaft No. 5, Morgan Bateman; Shaft No. 6, complishment ami one that attests the efficiency of the Cardinued on page H> 7 'I!! !. hi I'DXT M \C, \Z i X K I The World's Longest Tunnel is Being Driven With Du. Pont BH--re -um Above--The village of Allaben, New York, headquarters of the engineering staff, with the Shandaken range behind it / lie Siuitiiakm funnel, near thefoot of Slum1^ pipe and the 4-inck air line beside it. The v*t The 5 h. p. electric locomotive takes care of # circuits am also essential equipment, Otiftfi reproduced bp ewrf*Jj I - t-yjpsg I. Tunnel nmxlrueliett tin a big project like this is not ail underground work, / 'rn/ucnliy some member of ike staff is required to travel several miles bg automobile in the performance of his duties--and he goes regardless of the weather. 'The photographer could not resist the temptation to snap this view of a liiile project that was not listed mi the daffs schedule of work. Up in the Catskills winter snows make iravcling a difficult and sometimes a dan gerous a ndertuking Tunnel heading south of Shaft No. tl. The entire section is lift'd imi vertical columns shown in the center of the illidW,  THE DU PONT MAGAZINE nt Dynamite to Assure New York City an Ample Water Supply ... . jSPWr. II--i. te,W,:''"":"'' % ! BaBMI SkeMNo, i. At the left, jwrfe the 6-inch ventilating w ft1! at the right side supplies waterfor the drills, of tr%sportation needs and the power and lighting 9mf%i4 is the instrument platform. Engraving iiirty of "Public Works" uta i.. n HI )/),.'/ ( Shnjt A it>nl>f r i tcith the stone crusher at the right, .-If this -point the fitnnet is Ht.'i feet underground dr'^-d Imre at one time, using Jim "Water Leyner'' drills mounted on IIif'ation. Cut- reproduced by courtesy of "Public Warlcs" The photograph reprodneed, here tens taken, at the month of Shaft No. A, while the operator was piling the eases of dynamite in a handy position for footling on the- rage platform. Isirge quantities of Du Pont Ip) and 00 per cent gelatin dynamite are being used in driving the tumid which, at this point, is (i'Ji) fed hdow the surface level. One. fifty-pound, ease represents approximately the quantity of explosive retpiired for shooting one round of holes in the tunnel heading THE DU FONT MAGAZINE Books That Are Bound to Sell Because the covers arc worthy of the contents and add their own appeal to that ofpood literature OWADAYS it. takes mure than horse-power anil man ers. Asa result they are now gelling a very satisfactory busi Npower to keep a big factory running-...only bruinpowi-r van do that. Siuivsx is no longer measured by ness in Fahrikoid-hound editions ni important lieliou, I heir very (irst production of this kind being u set of the novels of Alary Roberts Rinehart, published by the .Review of Reviews capacity to turn out product, I mi l hy ability t o turn in orders. ( ompany. The cover cub me of t hesc hooks is ilhtsl rated here, When, today, we see an immense plant, like 1 hal of (lie bill, wit h very little just ice to ilsst riking bea.nl y. One must see American Book Bindery of New York, with every wheel I urn- ! he hook itself hi realize how a I tractive the embossed design is, iug, we know* Und hack of t1n> men mid the machinery there and how much it is enriched by the "Arteffeei" finish in i.s a sides organization with cxeeplional ability to attract blended shades of brown, touched here and there with gold and business and to keep it growing. other colors. If is by the use of this special finish that the We have just said "allraid business." Imt from an inter American Book Bindery is able to produce covers that.are full view with Mr. JL. Sateii.stein, President of I he American of character and individualily. ami so convincingly de luxe Jlook Bindery, we believe the wools create business arc more as t o aid immensely the sale of the books 1 hey appear on. appropriate in Hus ease. Air. Salenslein tells us that until the Most, of I he reasons why t hese heller covers sell novels are general depression hit the book iiuitiitfucinring industry. Ins fairly obvious. Many people buy novels in a rather haphazard plant, one of the largest in I he l niied Spites, was Riming out way, leaving the decision as to just wind, lilies they will pur its lull quoin. of ^o.OOO (hushed hooks daily. Tins great chase to lasl-miuuie impressions at the hook-store. capacity was then a. Iremeiidoiis asset, because' the large An "Arteffeet" Pahrikoid rover is sure to influence the edition publishers, for whom most of these books were made, choice of these people. They sense the fact that the book inx-ded prompt deliveries above all else. ('auditions changed which carries -nick a cover has the publisher's endorsement to almost over night and this great rapacity threatened to be an unusual degree. 'The beauty of the cover i I self attracts come a great burden, a liability rat her than an asset, unless 1 hem, and they like the idea and see the economy of keeping some exceptional methods of securing business were evolved. such books permanently. If they are buying book* for* gifts, A run Terence of t lie heads uf (lie American Book Bimlery then Have do luxe rovers assure them that their gifts will he came to two conclusions: First, that the publisher* could more impressive aml more enduring t ban if the ordinary dot li- only contract tor hooks as (lie public absorbed 1 hem. Second, bound volume's arc* sent. \ cry likely, also, they know that t he that to make, the public buy more books was 1 in* only way to Fabril oid funding is slain-proof, non-hiding ami washable: make the publishers buy moiv. So. as Mr. SaieitsUan very Hud it will not mildew or aptly phrased it, "We de mould and is not attacked cided to sell ideas iirsl, by vermin or insects. If and ihen books." they do not know this, A number of business the book dealer can make erca Hug id ea s wo re these qualities clinching evolved. One of the best arguments for his sale. dealt with books of fic But the making uf tion, particularly (he better selling fiction is novel. Standard novels only part of the effort of are customarily bound the American Book in riot h, which, consider Bindery. They build ing' the brief life of most, books of all kinds from novels, is an adequate the manuscript to the binding. Many novel*, how'ever, are of outstand bound volume. They 1lave been particu1ar1y ing merit, ami these successful in hit cresting become permanent, ad publishers in *<Arteffeet*fc ditions to our literature Fabrikoid bindings for and to the libraries of important books of ref book-loveis. T111 ex ee u- erence. Witness H. G, fives of tin1; American Wells* Outline of History, Book Bindery reasoned which we illustrate here. that such hooks would In this latest edition sell heller if bound in a the Review of Reviews material that also pos Company is offering sessed the qualities of this world-famous h tsiory permanence a ml j m rl ie- in a single volume, mid ularlv if these bindings that volume has a cover eould be made exception so .thoroughly appro* ally beautiful and ap pri&te, so ooviouslydunt- propriate. hie and de luxe, that this Working with Du Font. undoubtedly will be the Pahrikoid, they soon pro preferred edition for all duced some impressive the millions who will buy spi'eiinen covers in their Wells' Outline of History new "Arieffeef" finish now' and eventually. If to help visualize this Yon Miest see the hoot: itself to aypredate Us beauty we could have illustrated idea to friendly publish 10 v oy n i: i) r xt m a c a z i n f this hook in the four colors in which it is finished and in full size, you would realize something of the impression that the hook will make up on yon when you see it, for we believe there will be very few people who will not set; this book before long. Jl Ls the most important. juipular history ever written, and the binding makes it as attractive without as U is instructive and entertain mg within. It also insures its permanence against the hard use the hook is sure to get. The American Book Bindery is also making, at this time, the National Suc cess Course for the LeslieJudge Company, This is a well-known set of business books, which m selling bet ter than ever iii its new Fabrikoid dress. "Ring, the Star// of a t'ruid'ivr Doth" madefortlie Prentice Hall, Inc;., pub lishers, is another of their reeent productions that will delight the hearts of hoys and girls everywhere. The collie dog on the front rover seems almost alive, and as One of the jirst navels ever hound In fidnilodd the Fa bidho id in which lie is embossed is thoroughly waterproof, "Ring" can have a bath whenever he needs it. The American Book Bindery also produces busi ness catalogs and all kinds of bound commercial liter ature. Their "Art-efFect* ' Fahrikoid bindings on such hooks have marked advan tages, for the manufacturer whose line is covered can bring out upon them in striking relief his trade mark, slogan, paekage. plant or whatever he desires to feature. W he.revercolor is needed to reproduee the package or heighten lie general effect, color is avail able. The final result is a hook so impressive that it has the right of way wher ever it is scut. It- goes straight to the executives offiee and slays there where it will do the most good. Tims Fahrikoid bindings in the "Arldfcet" finish are helping to create a worth while business for the Amer ican Book Bindery as well as tor theeuslosiiers they serve. What Explosives Users Say About Dumorite Advertising Pyralin Toiletware Continued from jxitfe d "One of uur customers, hi regard to fumes, says this is the best yet. It. is indeed very pleasing to carry in stock a com modity that the trade demands. We are recommending Dumorite lo all our trade."' It. is apparent from the foregoing that Durnorite has meas ured up to <mr claims for it. as a practical efficient, economical explosive for such i,yjK\s of work as it is adapted. Dumorite has demonstrated Uurl it is not lacking in strength or in other qualities to give; it equal ranking value with other forty per cent dynamites of comparable character. Stick for slick it produces equally good results- and it is economical. For example, a box of Dmuorile No. 2 contains 135 to 1 40 sticks while a box of forty per cent dynamite contains only IOC). One box costs no more than the other. The evident advantage favoring Dumorite is the productive energy of the additional cartridges, a represented value of one-third more per dollar. If you are an explosive user, Dumorite may help solve your problem of production costs--and it may not. Conditions peculiar to your operation may not permit of its use with economy. But it is worth while to determine- that point, and I he way to find out is through our explosive sales offices or by writing n fully dcseripl ive letter about your work and address ing it to the Technical Bureau of the Du Font Company. Wilmington, I)eluware. If Dumorite can he used economically in your operations, you will he so advised; otherwise, another type of explosive will he recommended. Du Pont Technical service is freely rendered to all customers. Continued from page 6 we describe the full line of dealer helps which we supply In give the loeal dealer a 100 per cent, tie-up with our national advertising. This includes material for window and counter displays, lantern slides, li Lera Lure for use with consumers, a complete newspaper advertising service and a booklet for the instruction of retail salesmen. No charge is made for any of tins material to any dealer who will put it to good use. We urge our dealers not to neglect, hut. to use these various helps. Do not. make the thousands of consumers in your city, whom our past advertising has convinced, and the added thousands that our 102*2 campaign will influence to buy Pyralin. hunt for the store where they can buy it. Use our various helps to tell them that your store is headquarters for this preferred toiletware. Last month we told you in these columns of the broader market, for Pyralin that has resulted from lower retail prices on ah articles and decorat ions; from the addition of some new ami attractive decorations that anyone can afford; from the strong demand which has developed for Shell Pyralin and Amber Pyralin. and from the confidence of the public in the value ami quality of Pyralin at a time when they arc using the utmost- caution in their purchases. Today, all over the United States, Pyralin Is the largestselling. siirest-selling toiletware. Backed by our advertising it will be a leader more' than ever Lhis year. It has a preference among consumers which is a definite asset to you. Use this asset. Stock Pyralin and push it with our help. Hook up with our advertising and tell your public that they can buy this best-looking, best-value toiletware--the toilet ware they want--at your store. 11 THE I) r I'OXT MAGAZINE THE DU PONT MAGAZINE Put,Untied and copyrighted by E, I, DU PONT !>E NEMOURS 4fc COMPANY. Inc. Stdm'ripfioji, f>0 cmfx the year E. It. MAK<ua^Ti-m..................................................................... Enltar I'ublixln'r:; racy reprint, with m-.'lit. nil articles and jlIuwIruHonn i-xt:i`pt those vsrryinii spnr'ml eopyrij'ht. KJr-etmfyjHX'i wiil. when piwaiblr*. Ik - furnbiiiorl on rwiuesl. Vol. XVI MARCH-APRIL, I5W2 No. 2 Goiojcnuv Nohs William (bviit!, a Yiee-Presidenl and Director of E. 1. du Paul do Nemours & Company. Inc., lias been re-elected a maniPer of lho Executive UommiUee. Prior to RHP Air. Coyne had been a member of I his Committee us vice-president in chmrge of sales. During lhe past few years he lias been in charge of military stiles, government. claims and has been a member of the Finance Committee. The respect ire industrial deparfmenls of E. I. du Pont de Nemours & Company, Inc., have taken over the sale of all l>u Pont products formerly handled by E. L du Pont de Nemours Export Company. The latter organization, a subsidiary of the Du Pont Company, was discont inued April 1, 1922. The Orange Band and the Dri Foul Oval For many years Du Pont black blast ing powder has been packed in kegs not readily distinguishable from those u*ed by other nnnnifae!urers. Reecnlly, if was decided to make Du Pont, kegs more distinctivc: by painting a band of orange around tin* middle of the keg and further identifying it by the Du Pont oval. The accompanying illustration shows the marking, which, it is believed, will serve? as a protection to ilie trade against substitution. Borne lime must elapse before all of our kegs can be so banded, but eventually customers will look fur powder kegs with this marking for assurance that the product within is t he old reliable Du Pont brand. Monobel No. 8 a Class I-A Permissible A new Du Pont explosive, which will be known rt> Monobel No. 8, has passed the otHehd tests of the 1 . S. Bureau of Mhies and has been placed on the Permissible list in ( lass J -A, the highest rating given to an explosive as a nteuMire of its suitability for use in gaseous and dusty mines. Monobel No. B is the slowest st rong Permissible made bv the Du Pont Company; its low density and good sensitiveness make h desirable as a lump coal powder, and it should, there fore, find a ready sale to the coal mining trade. 15ilK'im-n Will \1V-*`L A-;iin At. C:mij> IVrrv The home office of the Pyralin Department, C. W. Phellis. Genera! Manager, lias been moved from Wilmington, Dela ware, to the factory location at Arlington, N. J. The depart ment, however, has retained an office in the Du Pont Building which will be known as Wilmington headquarters. The position of Assisi ant. General Manager of the Pvrulin Department has been discontinued. J, A. Burekel, formerly Assistant Director of Buies of the Pyralin Department, has been appointed Special Assistant lo the General Manager, _______ H. W. Brokaw, Plant Manager of the Arlington Works, has been appointed Director of Manufacture. The Pittsburgh branch office of the Pyralin Department has been discontinued. The trade in that district is being served through the New York City office at `21 K. -Midi street 11k ; Chicago branch office of the Pyralin Department has been removed from IBM- McCormick Building to 14 North Franklin Street, William Johnston is Bales Manager. Kular^in^r liic Libeu-iik Plum L. A. Yerkes, President of the Du Pont Fibersilk Company, has announced that a new unit, estimated to cost $2,0110,1)00, will he added to the Company's plant at Buffalo, New York. The plant, now has 225,000 square feet, of floor space, and flic addition will increase it by about. 200.000 square feet. ('oust ruction work will be started at an early date and the new unit will, it. is thought, be eompleled about t he cud of this year. The present output, is 1,500.000 pounds of silk. With the new unit in operation, the plant c/tpaHly will he virtually doubled. The National Matches will be held this year at. Camp Perry, Ohio, from September 2 to 28, inclusive. This announce ment had been made through the press by Assistant Secretary of War, J. M, WniuwrigliL who is also President of the National Board for the Promotion of It ilk- Practice. For three years in succession Camp Perry has been selected as the meeting ground for flu? nation's expert, riflemen. It. is an excellent location, overlooking Lake? Erie, and the range itself is said to be one of the best equipped in t he world. Col. Morion (\ Mummrt, who served as Exeeut ive Otlieer of the National Matches in B)21. will have charge* nuain 5 his year. Viscolac A New, Economical J.ae<]tier Continued from pwjt* 5 Yiseolae finishing operation is usunllv completed in ns many hours. The Viscolac film is remarkably clear, lough, durable and adhesive. It is unaffected by nmisi.lire and dries without a trace of `Tackiness." This makes it an especially well adapted product to use on articles such as nuns, umbrellas and paint brushes which are usually held fur some time in the user's hand, and an* likely to become sticky unless a product of this character is user!. Maiiufu<Jurors already using Yiseolae tell us that their products cun now be made, finished, shipped and used with much less chance of accidental damage to Hie finish than when they used other finishes, because \ iseolae does not readily scratch and never cheeks. In comparison with other nitrocellulose lacquers made fur the smile purpose U is vastly more? economical because of its much greater body, one cua!. of Yiseolae often being found sufficient on work requiring three coats of ordinary lacquer. Yiseolae can he applied by spraying or dipping. Colored enamels made mi X iseolae principle are now also available and are being used in industries where their quick-drying qualities as well as more durable finishes arc? found desirable. 12 TII K 1)U PONT MAGAZINE Boring Machines and Explosives Twin Helpers 7he Comm-Alford machine and Dumorile make light work of the labor of land clearing F you have ever watched a laborer attempt to dig out a I good sized pine slump with ordinary tools--a shovel and axe for the first, assault and then a block and tackle- you will agree that it is a tediously slow task; for lhe resinous com pos i lion of the pine stump of the Southland makes it resistant to natural divay and its deeply embedded taproot grips the earth so that it cannot he dislodged without u vast, amount of hack-breaking work. That is why more oflk-ienl methods of stumping have been developed, why power boring machines, explosives, slump pullers, and other equipment have come into use. Explosives have been employed for many years. The stump puller is not new, hut the power boring machine...at leas I, it .satisfactory one....is a comparatively recent addition to land-clearing tools. An enormous stride in agriculture was made when men learned to substitute explosives energy for human labor in getting out stumps; nevertheless, the hard, grueling labor of boring holes for the explosive charge* remained. Any one who has tried to bore a hole into a slump wills a hand-auger knows that it is hard work, disheartening 1.o most, owners of cutover land. Now mechanical power takes the place of human labor for this task. The Cowan-Alford boring mad line has heeoine the twin helper of dynamite. One man operating this mad due, it is claimed, can bore from 'ifMl to 4(H) holes a day at a maximum cost of three cents a hole. To accomplish tins same result with hand labor would require fifteen men. each one boring from twenty to twenty- five holes. The hand labor would cost about $22.50 a day-- the lairing machine about $0.00 a day. There are several advantages gained in boring holes by machine rather than by hand. The operator can start boring at the surface of the ground, without first digging the earth away from the stump. The machine bores the hole at the rate of twenty indies a minute. Imagine a laborer with a hand- auger working at that rate of speed! The operator can bore holes atany ai igle desired, and, if he is an experi enced stump blaster, he ('oirau-Alfonl - will direct the bit at an borhtfi machine | acute angle so that the attachment . ) hole will be driven deeply on a >S'am.son 1 ! into the heart of the tnp- (ru-tiof * \ mot where the dynamite dlarge can do its best work. Machine boring also permits of using auger bits of larger dimension than can be operated by hand. This makes it possible to load an adequate charge in the hole. The Cowan-Alford boring madtine, as a separate unit. is mounted on a steel frame with shafts attached fur animal i ruc tion. It. is equipped with a light-weight, water-cooled, four- . . a..... "Wttft t it/MM*. v . vM ::i V'x.---- fitiiiiyiis ,, ifter the stump shown bet(nr teas machine-bored, u ehanje of seven pounds of Dumorlte was loaded and fired. It was a perfect shot, not only because the explosive was well adapted for this axe, hid also became the hole was bored at the correct arnjle for loadhnj horse power gasoline engine, friction dutch and automobile- type carburetor. The transmission consists of hardened steel spiral gears with thrust bull hearings enclosed in gear housing and run in grease. Plotted shut Is permit a horizontal adjust ment of SO inches and a vertical adjustment of M inches. A hand wheel at the top gives the operator control from the plat form. Bits may be had for boring cither wood or soil. Tile soil auger is designed for tr<*e-phi tiling. boring under stumps, for hardpau blasting and similar purposes. Hot I i are soIf-feed ing bits, two indies in diameter, with oil her a 00 or 40-inch twist. Once (lie bit is placed against the wood or earth, the operator merely throws in the dutch and the engine does the work. Owners of Fonlsou and Samson tractors can now install the Cowan-Alford boring device as an attachment to their ma chines. Theaeeompanyiiigillustration shows a Samson tractor equipped for boring a 2-ineh hole at an acute angle into the lap- root of a large stump. It was a small job easily and quickly performed, and when the charge of Dumonte was loaded if was only the work of a second to root out this deeply im bedded stump with a perfectly executed shot. Mechanical and explosives power are twin servants of pro gressive land developers. The Cowan-Alford horing machine, or its tractor attachment, quickly, economically, bores the hole; then Dmuorite takes up the task and finishes the [oh. Both are practical land-clearing helpers. The Alford boring machine does more work and better work than is possible by hand and at a saving of time and money, Dmuorite does just as good work, stick for stick, as other explosives ordinarily used; but with more sticks to the case, it enables the user to do more work per dollar than any other brand now sold. 18 THE DU FONT MAGAZINE How is Your Safety in Shooting Insured? How m the Reliability of Your Ammunition Guaranteed ? 1L is impossible to distinguish by visual examina tion of smokless shotgun powder-- u powder of .standard quality from an inferior powder -- a guaranteed powder from a noil-guaranteed powder a well-made powder from a poorly-made pow der - a properly made powder from a cheap powder ... a safe powder from a dangerous powder, ****** pour hundred and fifty million shotgun shells loaded with smokeless powders are sold annually. This means four hundred and fifty million ehanees taken annually by sportsmen, if inferior powders are used in the shells. \\ bat IVokwl* the Sportsman 'f T1 ie only protection-...the only guarantee of safety to the sportsman - is the brand name of a reliable powder on the shell ease, the shell box and on the shell itself. 4* * 4* 4* * In buying shot-gun shells it is most important to specify the kind of powder desired. It is t he powder that makes the shot go; therefore the powder is the most important part of the shell. Without powder the liesl shell is nothing-.. it will not shoot. With inferior powder the best shell is but an in ferior load and will give hut inferior results. The mime of a high-quality powder printed on the shell ease, shell hox and on the shell itself is the guar antee to the purchaser that he is getting a high-qual ity load--and it is his only guarantee of powder quality. Tin.; Sportsman'* S immunce The name of a high quality powder printed on the shell ease, shell box and cm the shell itself is the SPORTSMAN'S INSURANCE against the dangers of using inferior or defective powders which can easily mean an epidemic of burst guns resulting in painfully, or even fatally injured sportsmen* or sportsmen permanentlv maimed. The time to safeguard against accidents is before they happen. Sympathy is poor consolation for personal injuries or destroyed guns. For a quarter of a century, or almost, since the advisit of American-made smokeless shotgun pow ders, the praetice of branding the name of the pow der on smokeless shells has obtained in this country. As a result, we have in this country today the best smokeless powders in the world--best because of their safety, the iron-chid guarantee behind Ihem and THEIR LOW COST. Safety Knvt The DcalrrV Kopoiisildlilv Since I ho quality' of the powder is such an impor tant factor in the safety of the merchandise sold, it is plainly the responsibility of the jobber and dealer to handle shells branded with the name of a reliable powder, manufactured by a reputable powder maker. The name of a reliable powder on the .shell rase, shell hox and shell itself is the guarantee to t tie jobber that he is offering for sale to dealers a safe and satis factory article. It is the best, guarantee the dealer can oiler the .sjx>rtsnmn that he is selling Inin safe and satisfactory shells, A continuation of the long-established practice of selling shells branded with the name of a powder, guaranteed by a reputable manufacturer, relieves the jobber and dealer of tiie worry of legal responsi bility in case of damage resulting from selling shells loaded with inferior powders uiibniiukul. ImproUmg ilie Oualtlv id' Powder The brawl name ol the powder on the shell ease, shell box ami the shell itself...the present practice-... is the incentive which moves the reputable powder manufacturer to leave nothing undone to improve the quality of his product, thus safeguarding the dealer and jobber selling his powder in shells and the sportsmen who shoot it. The long-established practice of branding the name of the powder nit the shell ease, shell hox and the shell itself has saved American sporUmen from flic dangers of unreliable powders. \\ Imt Doeo thin Protection Uosl ? Slid Is loaded with reliable powders, made by rejm table powder manufacturers, bearing the brand name of the powder, cos! no more than shells containing a nameless powder, sold tmbnuided. Mr. Sportsman, you have always enjoyed ibis pro tection; il has cost you nothing. Vt lien tuning shell* make min' Hr;;* She idud! ease. shell box and sln-ll ifsi-IT hear the. name \A'a reliable powder. 14 T UK I > l: V O N T A1 A G A X ! N E Tufcote-Auto Finish Two Profitable Specialties You can increase your 1922 paint profits with these, two popular, quick-selling- specialties. Tufcote and Auto Finish are equal in quality to any similar products--and superior to most. They are backed by a selling proposition that includes forceful newspaper copy, attractive dis play features and sales helps--and a coupon plan that is different. This is your opportunity to build up a per manent specialty business on two nationally known nationally used products. E. I. du Pout do Nemours & Co., Inc. Paint & Varnish Division 15 THE J) U POX T MAGAZINE Continual from fxifje 7 .Robert Parker; Shull No. 7, .Edward Gordon. Iiadh superin tendent lias organized Ins forcvs for 8-ltour shifts as necessity requires and l he work is being done under Ids direct ion subject b> the approval of the executive staff. Lack of space prevents detailed description of the method employed in driving this tunnel. It must suffice to say that all headings are driven by lop heading and bench method, mucked by hand except Shal l No. (> and north end of Shaft No. 7, which are full-iaee headings; these are machine mucked on account of the treacherous and unstable nature of the ruck. Of the twelve headings, nine are now being timbered. ft lias been my observation that comparisons with regard to speed on public work are deceiving ami odious. On no two undertakings of similar character are conditions alike. There are so many variable factors, such as supply am i spirit of labor, proximity of work i<> points of material supply, condition of roads over which materia! is hauled, and .so on, ! hii I wIdle the lieu onlraeting Corporation would not, suffer by any comparisons, it will not lx; necessary to dwell at length on t his. Suffice H to say that the Board of Water Hu, >piy monthly figures indicate that the maximum monthly excavation in twelve headings was lineal feel; I la* maximum weekly excavation in twelve headings was 1,5(12 lineal feel; the maximum monthly excavation in any one 1leading wa> GOS lineal feet; and the* maximum weekly excavation in any one heading was TIB lineal feet, all on a two-shift basis. The average advance in heading per shot is now slightly in excess of nine lineal feed-, and tin* maximum has rim frequently as high as fourteen feet, and over. From January /, \UJis to Jan nary /, JS7J70 Hand fret of com pick'd trimmed tunnel was iwmmtvd, which, m Jar as is known, in the irorhl's record. The headings are now being operated on a two-shift basis in Shafts 1, 5,4 am! a. a swing shift in Shaft Gf two shifts south of Shaft 7, and one shift north of Shaft 7. It. is ex|>eet.ed l lutl. they will "hole through'' between Shafts 7 and G: 4 and ami in the south end of 7 in April of this year when the lining will he started. Work of this diameter dues not. lend itself to employees" welfare work so well as In large industrial plants where labor is more or less permanent, of a din'erent. class, and where i hen* is not a large turnover. The very nature of Hie living esmdb lions... with housing facilities of a temporary character...pre cludes welfare work of the kind you expect to find hi large in dustrial centers. All the camps, however, are built along the must modern lines. The sanitary regulations, and the policing of these camps arc supervised by the Board of Water Supply, and the living conditions of employees arc so favorable that the rate of mortality and sickness so far is less than in New* York City itself. The method employed in drilling and blasting is the same as that ordinarily found in tunnel excavation of this character. In general, t-eiidinc holes arc drilled and eight relief holes, all eight feet deep, and six cut holes, all nine feel: deep. Du Pont low-freezing 40 j>er cent and (iO per cent Gelalin, IJd x H arc used with Du Pont No. B Electric Blasting Caps and other accessories manufactured by or for 17 1. du Pont de Nemours & Company, Inc. The holes are fired at ? o'clock in the morning ami al 5 or tj o'clock in the evening for the second shift operations. M ore than d.700,00(1 pounds of explosives will be used on the work. I fed that I cannot bring this article to a close without a further word about the men who nre constructing this tunnel. The stuff is composed of men of capacity and experience. They are not. directing the enterprise by telephone with their feet mi mahogany desks, miles from the scene of action, but you will find lhem on the firing line right on the job--where they live ami labor while this undertaking is in progress. E. I. d u Po n t d e Ne mo u r s & Co., In c ., Wil min g t o n , De l a w a r e All Inquiries Regarding Du Pont Products Should be Addressed to Our Nearest Office ACIDS AND HEAVY CHEMICALS Acids, alums and miscellane ous heavy chemical products, Newark, N. J. 24U Yumlerpnol St. Philadelphia, Pa. 35 th & Grays Perry Ed. CHEMICAL PRODUCTS Rnmze powders, ether, iol!adion, household cement. lea ther helling cementi. pyroxylin laciu<'r.% am! enamels, split ant paten! leather solutions mu! other pyroxylin prepara tions ond solvents. Purlin, N. J. Chlcafto, 111. 1814 McCormick Bldg. Sun Francisco, Calif, 619 Cliromek' Bldg. CLEANABLE COLLARS {luilleney, iUne Ribbon and Water Nymph brands. Poughkeepsie, N. V. PinighKeejeae Woiks DYESTUFFS Dyestuffs and dyestuff intermediates. Boston, Muss. 274 Franklin Si. Charlmie, N. Car. 232 \V. First St. Chicago, HI. 1114 Tiihunc Bldj;, New York, N. Y. 8 Thomas St. Philadelphia, Pa. 126 S. Front St. Providence, R. I. 709 Hospital Trust Bldg. EXPLOSIVES Explosives for all industrial, ag> ieullural, military and sporting uses. Birmingham, Ala. 601 iirowsi-Marx Bldg. Boston, Musa. Harvey Building C.'Jiatincey& Bedford Sts. Buffalo. N. Y. Pnidenlinl Bldg. Chicago, ill. 1814 McCormick Bldg. Denver, Colo. 406 Ideal Bldg. Duluth. Minn. Hartley Bldg. 742 It. Superior St. Huntington, W. Va. 401-19 Rohson- Prichard BWb - Kannas City, Mo. 225 Scarritt Bldg. New York, N. Y, 120 Broadway Pittsburgh, Pa. Fulton Bldg. Portland, Ore. Norllwealeni National Bank Bldg. St. Louis, Mo. 17th Floor, Arcade Bldg. San Francisco, Calif. 619 Clmmirk' Bidg. Seattle, Wash. llo^c Building 2d Ave. & Cherry .St. Scranton, Pa. 701 Traders Bank Bldg. Spokane, Wash. 721-22 Old Nat'! Bank Bldg., Riverside Ave. & St event; St. Sprinufiehl, III. Reiseh Bids. FABRIttOID AND RUBBER FABRICS Fabrikoid for automobile tops, body covering arid upholstery; bookbinding, furniture, lug gage, nen elites, etc. Rubbertouted jal/rits for auto tops and curtains. Newburgh, N. Y. San Francisco, Calif. 619 Chronicle Bldg. LITHOFONE. DRY COLORS Sc PIGMENTS Products for paint, ink, oildoih, linoleum, rubber and other industries. Boston, Mass. Everett Station 49 Chicago, ill. 2100 EBion Ave. New York, N. Y. 21 K. 40th Street Philadelphia, Pa. 35th & Grays Ferry Rd. San Francisco, Calif. 619 Chronicle Kid". PAINTS AND VARNISHES A complete line of paint and varnish products for all home and industrial ttses. Boston, Mass. Everett Station 49 Chicago, 111, 21W Klston Ave. Flint, Mich. Flint Varnish & Color Works Jersey City, N. J. Morgan & Washington Sts. Philadelphia, Pa. 35th &. Grays Ferry Rd. San Francisco, Calif. 619 Chronicle Bldg. PYRALIN Ivory Pyrnlin, Shell Pytalin, A mht.r P\raliti and Colortone I*yralin toiletu-are. Novelty and transparent sheeting, radst tubes mid beading. Boston, Mass. Harvey BuildhiK Chaimcey & Bedford Sts. Chicago, III. I S North Franklin St. New York. N. Y. 21 IL 4Uth Street St. Louis, Mo. 17th Floor, Arcade Bldg. San Francisco, Calif. 619 Chronicle Bldg. Atlantic City, Netv Jersey^ 1121 SSoanltvallc Du Pont Products Fxhihit It OUPONT SABRIKDJ! Wise trimmers will learn the Craftsman way HE Craftsman Fabrikoid Top is bring Ting a very desirable, fast-growing busi ness to trimming shops in every section of the country. Its striking lines and the variety of attrac tive colors available have made it immensely popular with the automobile public. With this top, the car owner has all the com fort of an expensive sedan at but a fraction of the cost. He can have it made to suit his own taste and in harmony with his car finish or upholstery--Fabrikoid comes in a score of beautiful colors and grains. Those who have seen this distinctive top want it. And every order for a Craftsman Top means added business for some trim ming shop. Get your share of this new business. The Craftsman Top is not hard to build--it can be turned out very practically in any well-equipped shop, as is being proved every where. This top will attract the very best class of motorists to you and give you an increased pride and profit in the cars you turn out. We will gladly send you a line of attractive samples of Craftsman Fabrikoid and a book describing the Craftsman Top and Finish in complete detail. Craftsman Fabrikoid is also used extensively for finishing the bodies of fine cars--the Craftsman Fabrikoid Finish. E. I. du Pont de Nemours & Co., Inc. Fabrikoid Division Newburgh New York FABRIKOID TT more per dollar THE Du Pont Company leads the way in the production of more efficient and more economical explosives. In Dumorite, its latest achievement, it has made possible A great step in the reduction of explosive costs Dumorite is a new money-saving dynamite which gives you over % more work Tor your dollar--a gun-cotton-nitroglycerin dynamite without a headache--a non-freezing dynamite which can he used Branch Offices successfully at any temperature. / Birmingham Boston Buffalo Dumorite has approximately the same strength as 40% dynamite Chicago and does the same work, stick for stick. And you can buy 135 to Denver Duluth 140 sticks of Dumorite at the same price as 100 sticks of 40%. Huntingdon Kansas City New York Pittsburgh Ask the Du Pont Explosives Service Department through our nearest branch office how Dumorite can be used in your work. Portland, Ore. St. Louis Ask that question in a letter outlining your requirements. Find San Francisco out how this new development in explosive manufacture can cut Scranton Seattle your blasting costs for 1922. Spokane Springfield, III. E. I. du Pont de Nemours & Co., Inc. Explosives Department WILMINGTON, DELAWARE