Document 7ODLynb1eE19xk8oaLLvaGVKE

:4 ' * (SUP R*G. (J. 5 f*T Off Better Things for Better Living . . . through Chemistry This new Guide to heller gardening identifies over 75 garden insects, weeds and diseases in full color. And il's a ready reference of lhe best ways lo control them. 11 also contains o l her helpful information for easier gardening this year. Get a free copy today (roin your dealer for l)u I'onl Garden Chemicals, NEW IDEAS, NEW PRODUCTS, NEW JOBS Next month. In keeping with the season, a tide of 2,2 million graduates--1,8 million from high school and 400,000 from college --will surge from the nation's educational institutions. And busi- ..nessmen,.in "accordance""with-lOtir Century tradition,' will.put-' .tidpate- in "the" flood "of "iSiaiiatioii'dratory' "that overwhelms' the" ^ampus;auring tie tout week orJwo of Juliet J JIJ ..II' II 1.1' 'I IIII Already the Invitations are out; the acceptances have been returned. And the assumption is that the graduation speaker is propping hard, digging down for the eternal challenges and the ringing phrase* with which he can reward his semi-attentive listeners. ...... .................. ' The realist in this situation can do far worse than talk very simply and plainly about a subject that must be on every grad uate's mind; namely. Jobs, For in spite of the fuel that jobs this year may Ire relatively easy to locate land many graduating may have theirs all lined up), what can be more practical than to strike home with a few honest facts about how jobs grow? At con line neon tent, a busutessnoiiii tins mi opportunity..plus the responsibility--to lay the facts out tor all to see'and under- standi Facts like these: . . . . . . I I I.. . I It takes ideas--good ideas--to build jobs. These ideas may come from an employer; they must also come from mi em ployee, Only a steady and unremitting succession of ideas indeed has expanded the number of jobs in America from 40 million in 1940 to nearly 70 million today, Every business grows and develops through the application of ideas, and these ideas am the inventive thoughts of job hold ers . , , or job applicants. Job opportunities are constantly being crested in the business world by people with ideas for better products or better serv ices. For, Jobs are tied to things people want and need. ...................................Wlihl are 'flic Trends?.................................. ......... The- Da Font-Gompany-and the- 'SGiOOO"" firms- that "-use its products have more than- a passing acquaintance with job trends stimulated by new product's and new ideas. Over the years Du Pont has introduced a stream of new products and product applications--scores of these have appeared in the past five years, for example. And most, of them have helped generate new jobs, not only at Du Pont, but also with other .firms, . Add up the figures and you find that in the past two decades scores of thousands of new jobs have derived fram'the applica tion of new ideas by Arms buying and using new Du Pont prod ucts, This is a substantial accomplishment. Yet when you compare it with the projected number of Juno graduates ex pected annually from high school alone, just .five years from now (2,5 million >, you. got a fair idea about the bursting need for new Ideas, new products and new'Services that fact* and will face U.S. businessmen over the next decade. To create new jobs tomorrow, we need new ideas and new products today. Place fads like these before June* graduates and you can Impart a small measure of the opportunity facing young men and women as they search out and start their first jobs in business and industry. PIONEERING WITH NE! t nui'iiitutl if*' ifSf'r': of thi i'ou f tfrmhuis runout wort; Behind every business, an economist once noted, is "an "idea, prosecuted--vigorously;"" Modern-" entrepreneurs.like '' those"whose" Ventures are "reported' on "these pages"are"apt"to" ''^iree-anl''looking"across.tie panorama bf""postwar"'eco-' namic development in tie U.S., an observer"can "only"'mar-" vel at the vigorous brainchildren such men have fathered. For in 15 years, the number of American businesses has in creased by a whopping 1% million--up 60 per cent since V*J Day, In the past five years alone, the net gain has been 300,000 firms, or an average of 60,000 per year, ' ' One of the authors of this business drama 1b; a com parative newcomer: large-scale Industrial research for new products, ideas and processes. In prewar America, only a few firms maintained substantial research and de velopment programs. Today, nurturing science is becom ing standard operating'procedure; in five years, industrial research expenditures have more than'doubled; even the chemical industry, traditionally associated with the- labo ratory, has raised research outlays from $360 million in 1053 to nearly $700 million today. The result has been a steady outpouring of new ideas anti products. For large and small firms alike, these created not only more business opportunities but also ventures un like most that had gone before. In Du Font's ease, about half its sales are In products unknown 25 years ago. Ob viousiy, such -progress - is-not- made- in-a-vacaunrn-The force, and vigor-of "smaller 'firms that buy and use" DuPont' prod-uets is an 'essential 'factor"in' product success," Somithnesa ' new "product" provides'llia" foundatlol' bn'" which""is""iuilt "a' brand-new small business of converting,fabricsting, distrib uting or selling; at .other times, perhaps most, a Du Pont product is a springboard by which a venturesome smaller firm expands or diversifies. At all times, pioneering with new ideas means' entering or creating new markets-hard, alow development work by large and small firms in concert. This relationship of mutual dependence is easily overlooked, but it is a fact as plain as the nose on the gar gantuan face of the American economy. So-called small companies comprise the bulk of the business population; " than 1 per cent of all "firms have 100 or more employMecQs,i 18 out of 20 U.S. firms have fewer than 20 peopleand three-fourths of all businesses employ'less than 4. How buyers of Du Font chemical products use them to expand present or open potential markets is a theme with variations as infinite as the ideas that occur to individual businessmen. To suggest their range, the following pages sample a few personal histories of Du Pont products and of users' Ingenuity in adapting and exploiting them. Modern architecture of the Country Club Bowl recreation center, Sacramento, Calif., is topped by a steep and curvaceous roof of neoprene and "Hypalon" synthetic rubbers. This roof is a new venture by Garam, i!h<: v v ' ` s: i: : i i , . i | c \ \: J Elastomeric Hoofs When the striking modern building shown in the two pictures, left, opens this spring, one of the proudest beholders will be F, C, "Cam" Johnston, president, of the Carntn Manufacturing Company,.. Monrovia,. .Calif, For. .the. structure.. marka..CrftUt*s ..fi rat. venture ..into the htgh ..potential.' field of elastomeric roofing" systems; Mr< Johnston's .firm is responsible "for the" weather- tight' 'coating on "the building's curved' and'"soaring" roof--si fluid-applied system composed of Du Pont neoprene and "Hypalon" synthetic rubbers. Already an established muter of adhesives products. Caram decided to enter the roofing field because the Du Font materials offer solutions to engineering problems that have long hampered design of modem, unusually shaped roofs, "Now,". Mr, Johnston says, ''properly com pounded coalings - based -on neoprene and 'Hypalon' can be applied to roofs of any pitch or contour, and over all commonly used substrates when they are properly prepared. Also, Hypalon* makes bright colors possible. Add the facts that these elastomers will not support ire and will resist weather, abrasion, chemicals, ozone, ultraviolet rays of sun... and we feel that our firm, is expanding into..* field where we can make an im portant .contribution to builtitira on the West Coast urea we serve," ' BUSINESS IDEAS y a steady pursuit of the mew and the cliferent Patterns for Printed Circuits The needs of the space age have created opportunities for now firms 'with' special"abilities and'"know-how. "A dramatic' case"In "poihtls' Precision "Circuits,' Inc.", of M bunt Vernon, N.Y,, whose' "preaiient,"Charles Babel, is running better than a 11,000,QOi-n- year business in a field that barely existed a decade ago. Making printed circuits required for complex electronic instru ments, the company is only three years old, yet to one of the field's leaders, ... ........................... A factor in the young firm's rapid success, states Paul Kramer, supervisor of 'photography, was the' introduction of Du Pont ''Cronar" Ortho A Litho film, tailored to the graphic arts industry, "The exacting specifications of intricate elec tronic patterns must be transferred from blueprint to finished circuit at deadline pace," Kramer explains. "Film fa our critical medium; a good percentage of our 'assignments require tolerances of ,002 and ;003 of an Inch. Without the dimensional stability and holding qualities of 'Cronar' Ortho A, production of printed circuits would he almost impossible.'' ' Making printed electronic circuit, master drawing is first photographed on "Cronar" Ortho A Litho film; then negative, right, is exposed on sensitive copper plate for final processing. Continued Aroma Rama on Broadway won show business headlines by intro* dyeing scents characterizing places and events audience watched. Scents in Motion Pictures On December 8, I960, some 1,000 New York now** miffed a nim and promising idea in movie entertainment; Aroinaftama, in which the filmed 'sights and sounds of modem China were intensified by appropriate fragrances and aromas ranging from the scent of oranges and incense to tiger smell, floods and fireworks. Two years, earlier, the problem of .devising and distributing scents timed to roach every nose in. Ore theatre as the screen image appeared was tackled' by-Rhodia, Inc,, a leading maker Of ill! types of aromatic products. After creating 28 'required scents, Rhodia's experiments found that the ideal carrier and disperser for Ugh concentrations of aromatic material was "Freon" propellent. The end result: a ring of aerosol con tainers mounted on a turntable, and successively triggered into the air conditioning system on a split second schedule. Kudos for what movie and AromaRama producers recognized as a promising, easily installed technical advance were general; Ariini;ili;im;i li.-.s niibseipnoillv opened in (.lira ires on i lie West. {'init-.L and in ( 'nnada. iftmtes t `ntirr Trn ts f )rn- of mud niH.ion's 1 oip'heHt problems I ha delays and w reeked sehedules caused by wilder':-; wind, k ;h h v and free/.hut f.empefnt ures has been J irked hv a ysiuiy; ('fevefnnd, Ohio, {milder named Rulxii't I irmvn. His sulul ion: IndJd 11n.* t nine hoium under an air-inihil ml s)t<`U.er of I >u Pont- nylon. IJ** a ip; tied and }>uili hy Dnincstir Film Products i 'o,,, IV1 illershurp, Ohio. hiiildnr Uruwn';< hlirrip shaped "ijdou" weighs only l "J.'jO pounds, yta it- cfiiujik h'ly eowrs fin* home hninp hoift unih-mf-nUi. sliieldhi'' [on and workers from had weather, 'Hid maS-i'd nylon '"sfdn" is first. laid over (he she and assembled materials; I hen two blowers inflate the shaker whirh HUinds iJfiiil the home reaeh*-.'-; i ho weathert-hyM si aye usually four days Warm and dry. Brown's men work around the Htwk in l hree shifts, oomph'l l!!*.', our of Jiis SI': LOGO jo ll'idadiOh hoiiio ovary 21 days- The air supported structure lias withstood i wo had. of and Brown's hies I-a use d in resident ial o 'iih I ine t Mm, ho reports. provides superior workmanship plus savings of nearly #1,000 per house in increased tdlk ieuey of Idit. workmen. 4 -- TiT Electronics In Languages In education, an important .new teaching technique is the ''language laboratory'* at both college and high school levels. Using magnetic tape and an electronic system such as the "Linguatralner" (see picture), students can practice a language, hear experts speak it, and compare their own diction with that of expert linguists. In a few weeks, students have picked up enough Russian, for example, to travel in Russia, The "Linguatrainer" is a development of General Electronic Laboratories. Inc. of Cambridge, Mass., which has designed its classroom unit around tapes of "Mylar" polyester film in car tridges, This tape is durable and can be used over and over again for repeated training sessions. The flrat "Llngoatralnir" appeared"less.than' tvto" years" ago> yet.more "than'"two "dozen units are already dn use! To 'handle the increasing demand few this and other ..product linen,. .General. Electronic. Laboratories, is expanding production capacity anil marketing the "Linguatrainer" through its subsidiary. Science Electronics Inc. A Sandwich of Neoprene ... .. In California's San Joaquin Valley the temperature ranges from 30 degrees P, in winter to 112 degrees V. in summer. But a now prestressed concrete taxiway under construction at a Navy jet base in the valley is expected to handle these temperature extremes with a minimum of repair and maintenance. The reason: 24 neoprene synthetic rubber joints or "sandwiches" that contract and expand like the bellows'of an accordion. In one area these joints "will extend 75 feet across each end of a 500-foot-Iong concrete taxiway, where they'tan absorb up to three inches of movement when the concrete is affected by temperature changes. The joints are installed in six and sixnnd-n-half foot lengths to span concrete sections that are 25 feet wide. These joints are a development of B. F. Goodrich Industrial Products Company, a division of The B, F. Good rich Company; and this installation made at a new Navy base by .the Griffith Co. of Los Angeles is the first for aircraft. Successful tost installations have been made on highways, such as the Baltimore-Harrisburg Expressway, Neoprene was chosen us the elastomer for the joint because it will remain flexible and maintain a Light seal for many years, despite sunlight, weather, abrasion, oil and chemicals. . : I > l.ij.. i H' 0 m n:i;i . - ! \\ : : , , ; , U *i*i wiv-Lui r V*tV sCiiymv ncnji-tf Ul Itl-fcS ''Llf IgUet* trainer" (foreground) to teach 30-student class in sound booths. A plant goes up "S i i lA (.IV i lit'.. New products fathered by technical breakthroughs call for a second plant to make "Dacron** polyester fiber The long-awaited..ceremony in .the ...famous textile .village .. of Old Hickory, Tenn., was.so. informal it was not"really a ceremony at all,. After months" of' building,.. Frank Redmile, a Du Pont field project manager, shook Murray Acker's hand and grinned, "Okay, Murray, You can let for roll." Thus last month, veteran Textile Fibers manager Acker anti his OH Hickory staff started, up the first unit of . a complex process that put on stream Du Font's second plant to manufacture "Dacron" polyester fiber. Teaming up with the seven-year-old Kinston, N, C,, plant, Ilia new multi-million dollar facility will roughly double the out put of "Dacron". More than that, it will help the textile .... industry...iiitro.diice...a... broad ...spectrum.of. new fabrics, ..and.. ....transla te...ttiajoE...tech.n.ieal..aiwaiicas into, .fashions ..with. new.. ....talents and-properties................................................................ ............The- result-" for -you?"" Whether"you're" 'shopping "for"a.. ralnbow-hued high-fashion party gown or a cold-weather suit for office wear, you'll find your retailer offering new candidates for your year-round wardrobe. One yardstick: . In. I860, one large New York department stMe.will.be . carrying It .articles of "Dacron" for each two. it made . . available last year. The same trend will bo.evident across - the nation, ............................. ................... In its infant days, "Dacron'' captured the public fancy with two distinctive traits textile scientists labeled `'moisture Insensitivity" and "rapid recovery from stress,*' In 1953, those sparked..a sizable revolution hi .outer..ap parel;.. textile, mills ..were. able., to introduce.fabrics-of- unusual wrinkle resistance, .and. to pioneer 'the now - familiar concept"! waah-aiMl-wear,........................................ Easy maintenance signaled the end of ancient upkeep problems of hot-weather wardrobes. Now summer gar- ments-men's suits and shirts, women's blouses-could be dropped into a washer and later dripped dry with mini mum ironing or pressing. The result was -that "Dacron" polyester fiber found a ready market in suitings; in light- weight fabrics such as broadcloths or batistes for shirts, blouses or summer dresses; in poplins for rain- and sports wear-even in marquisette curtains and other window coverings, ,4 Fannie of New Fobrics IIII.Ilniti.'apBireljises,'ioweifii:,..,.`Dac!ron,'...wa8..sfiil..iargBiy.. ... a. spring^summer fiber, and research went .on. to..find..ways.. ... to make toe fiber useful in a wider range of products; Nowj... seven years of Du Pont experimentation coupled with trial runs by textile firms are paying off in a parade of fabrics with radically different aesthetics. For example, in I960, you will see a new kind, of . . "Dacron" Du Pont calls Type 64 in the heavier-weight fall . and winter hard-finished and flannel suits for men. Readily . dyeable and pill-resistant, this fiber provides the bulk and - surface cover of traditional fabrics while retaining tire easy care traditional with "Dacron", Similarly, another important advance, Improved dyeability, will multiply uses of."Dacron".in.women's, fash ions for all seasons. Notable .example: "Dacron" Type 82, in which filament yarn has been modified.structurally and. chemically" to produce'brilliantly colored high-fashion- fabrics with the texture and "hand" of silk. In other fashion fields, blends with cotton in sateens, velveteens and Oxfords, piques and broadcloths are among the fabrics that will capitalize on the dyeability and varied textures available as "Dacron", bows at Old Hickory. "Vibrant "1 nnet" g o lor, "majestic rustle "of rttrtw aesthetic quali ties added-to this htgh-foahtoivevening'gown'by the new Type 62 "Dacron" polyester fiber. Brilliant colors anti varied fabric taxturns team with ease of cere to multiply fiber's fashion uses. Fall and winter weight fabrics of new "Dacron" Type 64 bring fiber's advantages to year-round male apparel. Luxurious, full bodied, with deep colors and a worsted hand, suiting fabrics below extend wearing season, helped spark Old Hickory expansion. : ' i /jo . i lr i. i: .! h -1: , i i! * i i r - > : s s 1 :! 1: : :: r I i i ! ' A:i / . : lu' K ! :!!. : i I f ,i -| if. ... ; ; i' i , ;> ! * . . .c m. !';:<! I ? j High fashion for l hr. "girl next floor' Costume look, a fashion favorite of Holly.. : toner, is achieved iie.-e by corr.bi-iint* a sfnr.-.i:..and silk etiiifon willi n Irocorlf! ovartinj' coot ..l I: . ' u : ' . >.:i . K S'an All-American girl in doiens of movies, actress June AJlysoit usually appeared in plain-Jane clothes. But currently, as hostess frequent star of the Monday night Du Pont Snow With June Allyson" (10:30 p.m. ipi r-p iC** .3LJ* * JL OD..CBS-TV.) .she's ..a. sophisticated. 'tiiroea-out:: young woman. new high-fashion look is Hollywood designer Don Loper. Using fabrics made with Du Pont fibers, he ' creates a fashion showcase for the textile industry with the glamorous costumes that Miss Allyson wears and the room "settings'in reasons for ismg this approach," Loper `We wanted to present June as the stylish woman she really is anti we wanted to show the versatiHty'"of""the"Du'" Pont "fibers,"' Among the fabrics used;.nylonvelvet, chiffon and lace; satin of "Acele" acetate; of "Dacron" polyester and and flannel, tweed and jersey of "Orion" acrylic and wool. a range means 1" can exact, effect. I want--one of extravagant simplicity, of softness and maximum femininity." Loper explains. SiC.S-vj.A ATHON :t-1 -- i'-ififiv:(:red h, a :;t ;y.;i,.;. : {' ;i ` !v.;l l What Sportsmen Learned About Plastics at the Sporting Goods Show Eaoh'"year "iipw8'Fi8'"Of"10i000"SportIng"foods'"jobbers" ancl"flea]eri "from'"all' over"the con n try fas -well" as abroad).descend on: Chicago to learn' what's 'eW""In"sports"ec|iiipnient,"Iii""fiye"'busy"days 'these' spoftsrnen"afe""vlrtually' enveloped in a spectacular show sponsored by the National Sporting Goods Association. This year the show Itself was remarkably symbolic of the tremendous growth now going on in-the industry. Billed as the "greatest accumulation of sporting goods assembled anywhere in the - world," it was commonly regarded by the experts as the kick-off for a record $2 billion sports year, ' ' The endless variety of 'sporting goods packed into one display after another Cover 75 lines altogether) included new products making their debut, and marked improvements in familiar products. Showgoers learned about exciting new developments in sporting goods -- from water-walking shoes 'Of urethane'to--a -skin - divert' underwater- boaimobBe. And -they learned, too, of the-increasing'and exciting uses of "plastics in "the'Sporting goods'field including those'for *`Zytel" "nylon resin,' "Delrin" acetal resin, "Lucite" acrylic resin, and "Siren" monofilament spinning line............... Fanning out from a Du Pont booth where more than 200 separate Items of plastic were on display, a photographer-reporter team chatted with dozens of sportsmen and came up with this word and picture report of what sporting goods dealers and others prominent in sports were learning about plastics at the 31st annual show. ' 10 '`Detail" UlUiffOSKJH u^n.\x ii ii>: i Vi.: -I. i 1 !' . o.;: 11 . ii 1 Hu r ;| !I.. !>: v. jh ..i: ji f.i ... . . v. ii*.- /, , , -I -Hi..* h u> . ;! ' \ . i,., ' -,,;i . -t .... ;r.|:( ;. Professio mil Sportsmen at. the Show -fe Morc Body -Bl iilding Pro Lein fro in W heat ,-f st ary ahoti l one Ihi l`oit t vxfihiralion into l ho exriliitg field of human tut t ril ion -- one that promises exeept ional hemfits for , Utuoirans anti all of tntnikitul in ii quiet I'Ju .Font laboratory, a 29 year old Texas trained biochemist, named Jack Diligent-eker records data that he hopes will provide a faster and morn a ecu rale way fo measure (lie quality of protein in human diets. Fifteen miles away, amid banks of complex iri.sl.ru merits, microbiologist Louis 1 ii Main ponders analyst's for amino acids. llie building blocks of protein, charted by an elect ionic mechanism. Just clown the corridor, physical diemi.st, Sharon Khle di'vises now IVirnajbis i'oi* bread which will be baked iri her gleaming expcrinjciilal kitchen - then fed fo laboratory animals to dclermine their value in promoting growth and licallJ). 'These Kleel roc he mica is Department scientists are part of a Du font nutritional team in its 15th year of war with one of mankind's most pressing problems: protean deficiency, the number cme nutritional problem in fhe world today. The protein content of our food is Important been use from it the body builds the proteins tlicit make up our living (Issues.. vilrtf organs, muscle, skin, nails, hair, and red blond cells. I'rotein malnutrition called '`kwashior kor" in its acute form --- is (.be result of inadequate quan tity or quality of protein in file diet, All too visible in the technically underdeveloped nations of the earth, protein malnutrition produces stark symptoms and (consequences - retarded growth, high child mortality, inferior adult size and strength, and low resistance fo infections. In less severe forms, if is observed in every country in the world, Improvement of protein supplies from the standpoint of quantity and qua lily is therefore a major objective of most, national governments, as well as of tint Food and Agriculture Organization of the United Nations. Strong HTorts are being made, by introduction of modern agricul tural pnu-lieeK In technically underdeveloped nations, to increase Hie production of high-quality protein sources such as meal,, milk, eggs, and cheese, as well as some of the more concentrated vegetable proteins found in legumes and oil seeds. Such efforts are necessarily long range in nature and are only a partial answer, for suitable pasture and crop kind are I imi led. Accordingly, Du Font scientists turned to a no (her approach - the improvement of cereal grain foods to provide high qua lil y protein. This is a fitting role for these essential foods, which have been the mainstay of human life throughout'recorded history. Today as In the past, most humans depend on wheat, corn, rice and other grains as the largest part of their diet. Agricultural experts and food technologists tell us that, as the world's popula tion continues to grow, we will be relying more and more on the versatile grain foods to supply much of the calories and protein we need. The pattern has already been set; as civilization has progressed, the cereal grain Industries have developed end- laac tVrIaf 1rtiod^Minvn11em donllrlll liimt1rJ1v1Urn* imIJ1 avrl%1 Libbc >11n1 rv*-to-Twsa! lIUWvrvllrwlci UKtj? 1r*M111t1ll- tag, baking, cooking, and toasting procedures. The variety of breads and breakfast cereals consumed by Americana today is an excellent example. Improvements in these prod ucts extend" beyond "taste" and ""appearance to nutritional Value," for" by "and" large "the'"cereal "foods' 'available' "to"the' 'American^ consumer'toduy are more"nutriioas^than"'those' available a generation ago. One of the outstanding im provements--a major accomplishment in the never-ending efforts of nutritionists to improve man's diet--was tire de velopment in the 1940's of the enrichment of wheat flour and bread with vitamins, iron, and calcium. ' ' ' ' With fresh evidence ramtiimally piling up on the crit ical importance of high-quality protein in the diet, the baking and cereal industries have been seeking ways to improve the contribution of their products to our protein nutrition. For foods made from wheat, which is the most Important cereal grain in large areas of the world including the United States, this'means increasing the amount of the essential amino acid L-lysine. Si HI rces of Pro tel ns Just as proteins build our body cells, amino adds build proteins. Some 20 of these amino acids are found in our body tissues and in food proteins. So important are these substances that the body actually manufactures many of them if they're short in the food consumed. Un fortunately, eight amino acids, designated "essential," cannot be produced by the body; they must be present in the diet. If only one of these essential amino acids is sig nificantly short in a meal, many of the rest are converted to fat or burned as calorie-sources, rather than used for body building........................................................................... .......In... 19.45,...eluting. ..study ...of ....the., reactions, .of., .a., .corncob. chemical by-product, furfural, Du Pont scientists made a breakthrough in this area: They successfully synthesized L-lysine, the essential amino acid in which wheat protein is deficient. So as. the 1.950's opened, Du Pout's Electro chemicals Department launched a full-scale scientific attack. The process came early, and improvements over the years have seen L-lysine's cost halved and halved again. Just as important, EJchetn men have added greatly to the store of nutrition knowledge. This has been accomplished by a major research effort not only within, the Company, but also in substantial amino add projects supported in outside institutions. As Dr. N. W, Flodin, development manager, summarizes, "Explorations have covered the fundamental aspects of amino acid metabolism, ranged over L-lysine's pharmacological properties, and deter mined....what nutritional. improvements can ..be. engineered., into. specific-wheat-based, foods, such- as-bread,"................. Participating institutions have included such uniwr silks as Cornell, Pennsylvania, Rutgers, Tulane, U.C.L.A., Vand<>rl)ili, mid (lope Town i Mouth Africa s; as wall as Liu; IiisUhile of Null'll ion of Central America and .Panama, Shuman Chetnica: f.ahorn lories, Hazleton Pahora lories and 11m* Baking Research Foundation. As 1Ik result of data Lurried up by such diverse re st'arch activities, most authorities agree it now is feasible to supplement ir.iidi of tin* world's supply of cereal foods with L lysine, converting these products to sources of high qualify pt'otein. 'I'his stop, together with increased use of legumes and seed proteins, says Dr. Henry Borsouk. pro fessor of biodiemistrv at California Institute of Technol ogy, would '`provide adoqiinlo nutrition for ino.si uf the world's people id a cost with in their means." Thus, by adding only one quarter pound uf Du f'onl I,-lysine In a hundred pounds of flour, wheat, protein is converted to quality protein like that of meat, mill;, or cheese, Such supplementation. Dr, Fredrick .1, Hlait* of the Harvard Hdiool of Public Health declared recently, is "a realistic and practical approach to mil.il ional prob lems In-cause il does not. change the good Piste, appeal awe, or chanted rislies ol basic foods , . Prul cin Needed ill I hM. The ttnlril ionnl honor to nee of I. Ivsine supplement;! : ,: : , , ) : u ; - i s ,. i , ; ; ; i i j i : , ' ! s . - i ' ' \ j : i: \ : i i .* !! I i i i : i I. . : i : `j Sl ! I: t il: ' i 3 5 `j w i u Vf data indicate that large numbers of Americans arc getting less high-quality protein than they need for optimum well being. Most children, for example, arc best nourished dur ing the first year or so of life*, when they are fed almost by prescription. Thereafter, a decline in the child's growth rate profoundly affects his appetite, fie develops strong likes and dislikes, and the mother's natural read ion is to give him almost anything he will eat. Because many animal protein foods are not sweet and must be chewed, the child often rejects them. Under these circumstances, he may fail to get enough high-quality protein to support good growth anti muscle development, according to .studies carried out at the Stale University of Iowa. Similar dietary shortages are found in older children and adolescents. In a slitdy of Iowa school children re ported by Dr. James H. Hilton of Iowa State College. <10 per cent, of the girls, and HI per cent- of the boys, had improper diets. And Dr. Adelia M, Beeuwkes of the Uni versity of Michigan has pointed out that fear of growing fat helps to make teen-age. girls one of the worst-fed seg ments of tin; population. Kfndies of college coeds' diets have revealed similar findings of inadequate intake of high-quality protein. Another key person the nutritionist worries about is the expectant mother. She must not only supply the pro to in to form ill" developing- ink ml tint aUo needs more j'i-. H< :; i i'-.r : I : i !:ili|,..l <' ill j|< r blood .iiillli.i- iiiiiiug ; I..';:'II. hoi uni .io'iy. i >.- .. h . i I..- ill. uI < \Y, el \ i !::!!!: - .-!: e1 !... s 11 ;\ j -ln<i f i ! < i. j ji / a !. looii-.i |:: a low-income group that not one.patient was..receiving, the ameiint of protein" (80'ter 85 grams daily ) recommended for pregnant women by the National Research"Council.'" By the same token, a review of medical reports on nutri tional therapy shows that ill or convalescent people fre quently suffer from serious loss of tissue protein, thereby delaying recovery. At the precise moment when the.body needs high-protein intake to repair damage to itself, the patient's illness often leads him to reject such foods as eggs,.meat, and fish. Among the results are weight loss and slow healing of wounds, fractures, and infections. Bread and other cereal foods are generally well accepted by such patients, and when supplemented with L-lysine, can help to meet their urgent need for high-quality protein, ........Other-studies-show-that many-elderly .people-eat little.. "iiiea t,' "milk,' and "eggs. "Elderly"persons" who"iive aloimrrriay.. simply""`not Pother"to cook' much:"' 'The"result"is" heavy "da-.. "penclenee upon bread or "easily"prepared "ceroa1 "fobtisl.......... Hazardous Custom--The Skipped IreuMiist Actually many nutritionists, surveying the nation's dietary habits, fear the protein nutrition problem is even broader. One hazardous national custom, they say, is skip ping "breakfast or eatiiig only lightly at the start of the rlsivji wniltthll KaUii.hWcOitpon-i|uiphnIIPf rlliftmr#U*nrviliInwr>vt AMIa.rHniHrlU-m*ri*tFvlnino- cristr*!*' Breakfast should provide one-fourth to one-third of our daily protein requirements. Yet it's a meal at which, many Americans omit the L-lysine-rich animal protein foods. Bread and cereal foods supplemented with' L-lysine would "go a long way toward improving" this situation, A second trend wrinkling nutritionists' brows is flint toward low-calorie diets. With work becoming"easier,'obes ity looms as a problem and diet fads multiply. Emphasis is placet! upon cutting calories, but this often means low intakes of vital nutrients, including high-quality protein, "Man's need for protein, vitamins, and minerals does not decline significantly, if at all, when he consumes fewer calorics," says Du Font's Dr, Flodin. "Consequently, for cliVrrf\urirtil mimr fyt*iiL+ jiruvniij iitt jios immipnvra/i'ftccHiniij' twlimnfi a csmi i iaq 1uIihm*, lufVuifuvnii nmtttt- should be proportionately richer in those essential nutrients," Where wheat is concerned, this nation of bread-eaters may consider the protein problem close to solution. Bread, "as will Is "cereals,"mariiroiii," arid"other' wheat-based" foods,.. 'can, '"tlTOUgli[proper 'Bippioiiieiitatioii" witti" 'Oyslne," offer""" all...a. new,...economical. souree.. of ..nutritious...body-building.... protein. The potential importance of this contribution is highlighted by the fact that these foods provide 20-50 per cent of the total protein in American diets, and in many individual meals, almost all the protein, ' ' L-Lysine is now being used commercially in many QCS |,TJtyiMArlnCaqIltv UiUJUOj HUfqJIt w Ft OnvnIkr^l.sOj'^ sifilnlriil Y|fVlfhit*lirfrlaliafvr>vp-Unfvfbif1l n|,#wI Aw* |.Imi.t 1wtf1*^ tions. In .addition, a. petition, is. currently before, the .Food and Drug Administration to secure approval of this amino acid as an optional ingredient in standard white bread. Present cost to the baker is estimated as low as a penny a loaf, for which the protein of the bread will be raised to' a nutritional quality comparable to that of milk, cheese, .and meat, ................................ These, signs, of success,.. after, .more ..than, a decade's, work, are highly gratifying to Du Pont nutrition scientists, one of whom confides; "The benefits are obvious if our efforts are successful. And what can push a man harder than knowing his work might lead to a healthier human race?" 1 Phonograph record case, Columbus Plastic Products Corp. 2 f-iibtic wall covetiriji, Columbus Coaled Fabrics Corp. 3 Vinyl-coaled uibleclolh, Columbus Coated fabrics Corp. 4 Pigmented acetate fibers 5 Printed sign 6 Candles, Chatham Candle Co,, Summit, N. J. ? Plastic sign, Western-Pacific Supply Co,, Houston 8 Dklstriubilc, General Motors, Detroit 9 Linoleum, Armstrong Cork Co., Lancaster, Pa. 10 Artists' water colors, Permanent Pigments, Inc., Cinctnna 11 Printed metal foil 12 License plate, Louisiana Sgr EjJJ |k I mt m. y%BSS8&1 if textiles... they have taken a new lease on life thanks to DuPont "Monastral" pigments 13 Awning slats, Navaco lnc,, Dallas 14 "Vinyl garden hose, Swan Rubber Co., Bucyrus, Ohio 15 Valiant, Chrysler Corp., Detroit IS Ford, Fort Motor Co., Detroit 17 Reinforced plastic boat, Reinell Boat Works, Marysville, Wash. The products pictured here are eye catchers simply because they are red. But the notable thing, about their colors isn't what meets the eye. It's the fact that these-reds, unlike cithers, will keep their brilliant colors in the face of sun, storm, chemicals and heat. Responsible are Du Pont "Monastral" red and violet pigments, which combine color faslm-ss and intensity in a way red pigments never have before. A oss-see|Ion of products, on rrenUy....being..cplpred.... "wi|ilhetit....Is. .shown...here,. Since .evm.a.Iittkorthese. pigments ..goes..a... . long....way....toward...producing.durable.colors,.. "Monastral". reds ...anti . ..violet ...a re... a t..their hast in pastel.. shades.. precisely the ones where fading lias been a particular problem. They also can be blended with cither pigments to improve color quality. Automotive finishes currently take the biggest aliare of the "Monastral" reds. Among the I960 cars they help color: Chrysler's Imperial (Dusk Mauve) and Valiant (Red.); Ford's Falcon, Ford, .and. Thunierbird (Monte. Carlo Red); and General Motors' Buiek (Titian.Bed metallic), Cadillac-(Pompeian Red metallic),- Oldsmobile (Garnet Mist metallic) and Pontiac {Coronado Red metallic). Home uses include wall fabrics and floor coverings, with colors capable of withstanding repeated washings. Before too long, drapery and upholstery fabrics of pigmented fibers should be available.. . ' Makers, of plastic .boats lave been., calling for durable .pink, and flame colors, reports Howard 13. McCurdy, .technical director of Rudd Paint & Varnish Company, Seattle, -which - supplies polyester - resins to this booming industry. "Until Du Pont developed the `Mciniisiriit* reds, there was no red pigment that could qualify as Hghtfast in tints, resistant to alkali, heat and salt water, and unaffected by promoters and catalysts used in polyester systems," he says. Louisiana automobile license plates are painted purple and gold this year, the colors of Louisiana State University, which is celebrat ing its centennial. Mobile Paint Manufacturing Co. used "Monastral" violet as the principal color pigment in a formulation that combined good performance with moderate cost. Outdoor signs of many types--painted, molded plastic and printed--are logical spots for the new reels. Inks formulated with them will oyern*.theuniMtIsM billboards, Figments Dept...research...men.say, Du Pont ..technical-men - also- are -working-with -inktuake-m-in -formulating -new - and- better -p rint~ ing inks;..Especially promising" are those for printed metal toils, which are fast gaining favor as packaging materials. M. Grumbacher, Inc., Mew York City, and Permanent Pigments, Inc., Cincinnati, have adopted the new pigments for their artists' colors, "To live up to our name, we must be extremely careful to .have only the most reliable lightfast colors,*' Henry W.- Levison, presi. dent of Permanent Pigments, says. "We chose the `Monastral' pig* ments after tests at 100 to "I dilution gave phenomenally good results," Oddly enough, a white refrigerator might legitimately be in cluded in this pictured line-up of products. "Monastral" violet is proving to be excellent at "toning"-making white paints look even whiter than they .are. It is considerably more economical to use than conventional mineral violet. j In addition to learning more about the -working properties of these pigments since announcing them two years ago, Figments Dept. research men have broadened the line. It now includes water-dis persed colors and extended takes, the latter aimed primarily at the floor-covering Industry. As color-conscious manufacturers translate technical data into their own product language, it can be expected that consumers will be seeing red-and purple-in still more royal measure. W  . i -\ : - - h j.: 1 . ] :t <! A is >\ n i: > .. . i i; I c / ..!:1 = ri i i if I' i Y 11; '!:: i . ,-;riti \ <\. \ \: < r..i r- I. D:. PEOPLE your gasoline should know Assam) sled in n conference room <*[ ;i New Jetsoy research laboratory uiii'c or twice a month are a dozen or mutr engineers and chemists. On their minds are the quality and performance of o ik - of the 20tli Century's m<is( familiar products: gasoline. (iasoline for the engines of some 70 million ears ami trucks and gasoline to suit Hie driving habits and needs of perhaps S5 million IJ.S. motorists. These men neither make nor .sell it gallon of gasoline. Yd their ex perk nee and judgment, based on pant mid present laboratory research, contribute in a real way to Uie driving safisfactinn you will have this year, next year and the years ahead, Lor lliese men arc experts in the extraordinarily complex problems involved in engine fuel relalkuifiliipK. And the results of fheir studies and ex|xirienec- can be ami are being applieii by the oil industry to pi'uel.ionI problems in designing a fuel to meet the neefls of motorists even as far away as 191)5. hirst step in fit inking about a 1 Wifi gasoline is to foreeasf the major characteristics of the aide engine for i.bat year Whal design changes will oreilr? I low many engines in 19Gb will have these changes? What will fie the effect on fuel properties? To find the a nswe its here, extensive f and expensive) lest programs are needed. Two or more years of iaborafnrv time and months of mad tests may he involved in a single 18 phase of a problem. Wild 20 different hydrocarbon streams available in many of today's oil refineries, and at least 50 different, additives which can be used in a gasoline, the possible combinations are extraordinarily large. This is where petroleum experience in depth is so valuable. It. focuses research attention on those blends of fuel components likely to be most practical in future refinericr. and beat adapted to meeting requirements of tomorrow's cars. By l!)(l-r> new engine designs, new re fining processes, customer desires in auxiliary properties, and oilier unknown factors will be involved. And the gaso line that will be used < 175 million gallons of it every day perhaps t will be a different product. I lesigning a premium grade gasoline for I he future starts with the nssi.impl.inn that, to meet the needs of most motorists in any given year, a gasoline must have a definite octane number. This number can be predicted (and it; is by Du Pont men.) within reasonable limits. Kor today's premium gasolines it averages 99,3; for I lie same high level of performance in ttXifi if is expected that an octane limit her of about. 103.5 will prevent knock ill most, cars requir ing premium gasoline. Technical people at the !'elrolcuin Laboratory make such estimates after studying the trends in compression ratios (the average for 19(>0 cars is 9.1); in 191)5 it is expected to be 10.2) and relating these ratios to Black In ran I skol."ln*s irac.-e .range oi elciucuu in gasoline research eonl'erenee other engine characteristics which affect octane require melds. They also consider expected changes in the way rt'Otii?!-i; art* mu. From (his point gasoline designingbranches out in halt' a dozen different directions, all of which comprise* special iields of knowledge. Problems of surface ignition of fuels, of volatility and stability, of antistall characteristics, of carburetor cleanliness, anti rust qualities all these and mote carter the picture. Additives made by Petroleum Chemicals Division help overcome these problems. Always at hand is the question of I row many miles per gallon a gasoline will yield the average motorist in his car, Hieli K\-jM-rieni*e, Wide knowledge Tire people who lace these problems In the laboratory of the Petroleum ('iientieals Division i and have Ireen han dling similar ones for -years r bring to their task -a rich experience and wide knowledge of oil refining and gasoline blending, as well as a first hand development background on chemical additives used in gasoline. Of the technical men who work in Du Pool's Petroleum .Laboratory, about half are engineers anti Hit; other half are chemists, many of whom hold advanced degrees. The engineers have diem leal, mechanical, elec!runic or other specialties. The chem ists. similarly, have a diverse background in formal educa tion and training. Altogether, graduates of more than III colleges and universities are represented on (he staff. The typical Du Pont engineer or chemist in tills held has six (o twenty years of direct study in this Inbornlong piled oil top uf his formal education and any prior experi euce ill Hie oil industry. For practical experience in the oil industry represents another important factor in (lie background of the let]mica I people at this l)u Pool la horn lory. In almost any group of five or six technical men there will he years of outside experience in the production, development or list* of gasoline*, fuel oils and lubricants. .... While gasoline-now being pumped into vour car may look or suit'll the same as it did last year or live years ago, people who have been carrying tin fuel research know how different it. really is. New additives contribute new properties: spark plug nnfifoiuing. antistall, anlirust. anti rumble and others. The people in this laboratory must foresee problems anil seek solutions before (hey alfeet mil lions of motorists. And so their fuel additive studies and the* line of Du Pont petroleum additives that have evolved from these studies comprise another valuable component in building a gasolines for iOCiU.. and for as well This is particularly true since Ibis Petroleum Laboratory handles a unique spectrum of technical work: research, product development, product cvalual ion and technical service. Ho it is thiit the people your gasoline should know are a group of highly trained scientists and research men in 1 )u Pont who work to improve the quality and perform atiee of petroleum products. They know gasolines and eats. Their work and their findings ate (lowing to oil men every where men in re linorice, research men in laboratories, iiiuuugumml men in oil company main offices. Your car and your gasoline, bought a; the neighborhood servlet* station, will know (hem, too. - Conliiuirit Engine Noises Studied by Petroleum Men Engine Knoek--This is the sharp, rattling noise you hear when you push the accelerator down to get away from a traffic light or to pass on the open road. If this happens when, the throttle is pushed to the floor the noise is called full-throttle knock; if it Is heard when the throttle is only part way down it is called part-throttle knock. Although the distinction doesn't mean much to a motorist, it does to the fuel expert because fuels of different composition behave differently under the two conditions. Knock occurs most commonly when the engine is poorly adjusted, but also occurs when the fuel is not properly matched to the automobile engine. Surface Ignition--All engines are designed for controlled In; tion of the flame by a spark plug at a predetermined p. in the engine cycle. Whenever the flame is started at a other time by Ignition from hot surfaces, the combustia no longer controlled within design limits and various no can result. This type of ignition is called surface ignition Wild Ping is one of the noises associated with early sur: ignition. -Since only one or two separate noises are usu Petroleum Technical Men Have Blend of Knowledge and Expcric WILLIAM T. ROBINSON Wiliam -T; Robinson,""Whii"' took-his bachelor's-i .... -in chemistryat-St,--incent- .. College, started working in : the petroleum field with the . Texas Company in 1943. Following service with the U.S. Navy, he joined Universal Oil Products and spent seven years as a techni cal service man on gasoline additives, work ing with refineries in the U.S., Central and South America and Canada.'With Du Pont since 1952, Robinson has handled a variety of technical and sales assignments, includ ing the application of antioxidants to gasoline sweetening and the utilization of additives in fuel oils. He is active in petroleum, engineering and chemical groups. Recently he visited seven European countries, to assist Du Pont . representatives anti to become more familiar with current European trends and problems in oil refining. This spring, after extensive experience in the Petroleum Laboratory, he was appointed technical assistant on new product develop ment working in Wilmington with the tech nical manager of the Petroleum Chemicals Division, DANIIL L. PA STILL -Danielto-Pastell, who bolds- -a-tochriorts-arid .master's.... degree in-.chemical -angt- - fleering and a bachelor's in electrical engineering, came to Du Pont direct from the University of Washington in 1947. His first two-year project in Du Font's newly formed Petroleum Laboratory wound up with an'unusual tech nical paper, "Precombustion Reactions in a Motored Engine." for this work In received the 1950 Horning Memorial Award from the Society of Automotive Engineers, the first of three such awards to be made to Du Pont men at the Petroleum Laboratory. The paper was a landmark in combustion research and indicated what could be done via basic studies to.develop new. knowledge about the utilization of oil industry products. Like many . associates, Pastel! spends, a fair amount of time away from the Laboratory. He travels 20,000 miles a year, participating in industry meetings and on industry com mittees. Now in charge of the engineering division of the Laboratory, Pasted helps make basic recommendations to refiners for the best fuel for your car. WILLIAM E. MORRIS William. EzMorrls.-a'chem i o a I - e n gi n a e 0 ff.Q rrt -t he .-U.nl versify-of "Missouri., came to Du Pont in 1950, following seven years with the Standard Oil Development Co. Muc his time has been spent on a wide rang studies of gasoline performance in engi Examples of his projects are: aviation g line, vapor lock characteristics and m gasoline preignition tendency. Since 1 Morris has coordinated Du Font's peri road octane surveys which involve oc number tests in the latest model cars gasolines sold in 15 marketing areas 1 coast to coast. He supervises a 20-car fleet and is constantly considering fac that indicate the need for changes in composition. For. the oil industry he served as member of a group that estlm yearly octane requirements for new Ai lean cars through the detailed study of individual cars. Currently he is carryim evaluation studies for possible new fue ditlves. Among his recent technical pap "Combustion Qualities of future G linos," written with colleague Kent H. heat'd, il is usually assumed (hat the hoi surface rt*S|K>nsihIe is si loose flake of deposit which goes oul. of the combustion <'hanilx>r with the exhaust gases. bumble is another .surface ignition noise. It sounds like a loose bearing and usually occurs ;tl speeds .above 50 mph tlur ing tin aeceleraf ion. If is believed to be due to surface ignition occurring simultaneously at several or many different points in the combustion chamber. When this happens combustion is very rapid, and creates pressure above design levels. Under this condition engine parts, usually the erankshif;, vibrate, causing the noise. Run-on is another surface ignition phenomenon in which the ear continues to run after (he key is turned off. Usually only a lew cylinders are firing, the engine runs very rough!;, and soil let lines with sharp noises. Hot surfaces are iigniling the fuel mixture, even though spark ignition has beer; shut oil. and since these ignitions are umimed the resulting operation is very irregular. MlNALIi K. !>!<;<;S onalil U. Diggs, who holds iroe degrees in mediana I tin g i e e e i mg t t o m oil (western (B.S.. M.S.. i.D.), spent two years in :searcli with I In; National Advisory Commite tor Aeronautics, taught lliermodynam s, hunt engines and other engineering mrses at Northwestern, and skirted at the 'troleum Laboratory with Du Pont in 191>0. aSigniHl us a junior engineer to the conibiis>n research group, Diggs studied problems ich as llame speeds, chemistry ot knock id others for throe years, became a group ipervisor and Liter spent 18 months on itomotive liaison work with Detroit. Now in largo of the Laboratory's combustion vision, lie is principally concerned with the. jy fuels burn in the reciprocating engine, s experience covers studies on Hie liumg rales ot fuels, combustion Chamber >posit rnooifiers, alternate anti-knocks, and place ignition. Looking ahead, lie says, -to one can predict exactly what the power ant of a 1975 car will be like. While we wi'f expect sudden change, it's our pi> to ilp refineries meet new needs." IIAHOl.l) J. SCHElu: Harold J. Sclnmte, a chem ical engineorfrom Rucknell, joined Du Pontm 1946.:iftei three years in proco.ss de sign and find resemcli with Urn Phillips Let,'oleum Co. Working in re search al I he I'elroleimi Laboratory since its early years, lie has been engaged in studies on gasot tie stability and crtt'faui a tot icing. An unstable gasoline forms varnish that inter feres with catljctetor an<i valve operation; ice forms in errburetors from condensed moisture on cold, wet mornings. Scheale's studies have been aimed at helping the oil industry overcome these problems with alternate blonds of rohnery components, plus gasoline additives such as antioxidants, metal deactivators and anti-icing com pounds. Additives like those are used in minute quantities (a lew cups pur tank truck). Accordingly, a high degree ot techni cal competence and experience from years in the petroleum industry are c j ideal, so a man like Seheule can make proper recom mendations. today. as a consultant, be backs up service of it-gamai technical managers through frequent refinery visits, PAt'L 11. HI I ill Allll Dan; H. Richard, a imvbnri real engineer from Poor State, spent five years ir u-seaich on fuels and lub ricants for the Nation;) Advisory Committee tor Aernn.tutics. Liter xv:111 Liin.i-Hamilfon lie handed shinies on mil road diesel engines and 1 rc-e i.'lsfou mnc.liiniiry, then h<? joined Du f'orn -n 1949 as an automotive teohnologtsl. in 19Ho he became the Potiofeum Chemicals Division's Detroit representative, handling lf=ti?or> wish Hie automotive industry. On this as si jnmerii fie has Hue'll concerned with engines, mu; tv-ssor the drawing boards tin tomorrow, so coming; trends and new knowledge rmpoi. rant to the Laboratory will bo awul.ente to llio petroleum industry. Richard is one of Dn Pout's best-known nioc.ltaint al engineers among professional groups. He Isas spoken to as many ns 25 ot these groups omnially on what Detroit is censitlef big n IS it; years ahead, from an engineering viewpoint- He has recently relumed to rfie Pesreleem Laboratory and will continue these activities as head of the aiiiornolive division, -.vor king on rneciianic.il problems i elated to fueis. l~~lf ti 1 /' 'i U 'f iT"l I" 111 "* 1 ''I / 'l l *"V%7 jjnifeiies witn xyntyX. ocriL When''Hie' surgeon arid"' his "assMante scrub' for' an'OReration on TV'or in the movies, it's high drama; but in real life it's part of the everyday routine. In a 100-bed hospital there is an average of 12 operations a day, and about five people must scrub for up to 20 minutes apiece to prepare for each of these operations. And so this hospital needs an inventory of about 200 surgical scrub brushes to handle just one area of its daily routine. While some brashes are being ster ilized in the autoclave, others are on hand for immediate use. Hospitals expect each scrub brush to stand autoclaving at least 300 times without softening or loss of filaments. With these requirements It's no surprise that brushes filled with "Tynex" nylon filament are turning' up.in" more' "arid more' hos pitals Jheseddays; For";bmsliesdw!th' "Tynex" can be sterilized repeatedly, and still stay stiff and lively. In surgical areas, labs, kitchens, rooms and hallways--in fact all over the nation's hospitals -- brushes with "Tynex" are helping maintain high standards of cleanliness. These brashes dry quickly, and therefore don't encourage bacteria growth. They resist most chemicals. They have excellent abrasion-resistance, and last longer than most other brushes. Collectively the 12,000 hos pitals and sanitariums in the United States, employing one of every 44 working people, probably use a larg er variety of brashes than most other industries. All told, there are well over 5 million brushes to service in U. S, hospitals. Housekeeping and maintenance needs, hospital include use of rotary brushes, swots paintbrushes, and toilet brushes, ft rotarv t! brush with "Tynex" will last up to twelve tin as long as one with another filling in filer w* n - 1I,, gU~\ oo iI'J\ -i1-f1 c<1lXI oo I v ,,j XI I.1-*1 cnl *1t~1 ....The housekeeping-and engineering 'departments" of..hospitals... rely...on 'brashes''" with"" ` `Tynex"~ rotary..floor' brushes, sweeps, paintbrushes, toilet brushes. An executive housekeeper of an East Coast hospital says: "We have .two rotary floor brushes--one bought two years ago the other -three years ago-and each is as-good as the day we bought it. One of them we've used six days a week cleaning the operating room floors, anti water has never softened it. Any other kind of brush .would, get so soggy, .that we'd have to -change - to- another half way through- the- day's- cleaning'in the op erating rooms. We notice, too, that a rotary brush with `Tynex' is much faster in removing floor wax," Hospital laboratories rely on a variety of brushes with "Tynex" for cleaning lab glassware from test tubes -to.beakers^... Hospital..-kitchens - -1 tw brushes" "filled"' with.."Tynex" "in. paring"'food and "dealing" ttp""aH>`iwards. In their rooms, patients lie pend on tooth- and hairbrushes oi Du Pont nylon for personal tldln Brushes'with."Tynex" nylon fila ment are- used in cleaning bedside water pitchers to help prevent iiw spread of infection from patient to patient. And in other areas, bed pans ami urinals are scrubbed, too, with sue oial -brashes "With""TyneJc", Says a-nurse-in charge of- service facilities at"one hospital: "The brush with `Tynex' that we use to dean wa ter pitchers is so springy! The brushes we once used would flatten, ant! 11 u n we'd have bent bristles on one side and just wire on the other. But these brushes with `Tynex' have bounce. iynex" ary fast, avert Bacteria ouno-uo. 23 RADIATION SHIELD!*; jgggjgj MBHI The Ancient Metal with the Modern Look Dh IN nit'explosives help.......... ;; ;; The Bunker Ilill Company bring'up lead to fill some utoiii-iigc jobs 'by R, H. LARSON, Technical Representative, with William J. Brooks . Two thousand years ago the Romans drank water that came to them through lead pipe, the Chinese spent load money, and Indian women prettied up by putting red lead on their faces. Now the ancient mesial fills man's modem needs in fields from atomic energy"through air transporta tion: Starf'yoUr "Mr,.tunron TVyor -read---a----new6paper= and tip your 'hat"to 'tHe'leacrihiher....................................... Last year American miners brought" a' quarter "miUibri" tons of lead above ground. Imported lead and secondary (reclaimed) lead found its way to American markets; and so a total of some 1 million tons was consumed, A third of that went into storage batteries, principally to sup ply portable electric power for automobiles' and sub marines, trucks and diesel engines, buses "and airplanes, outboards and luxury Miners, Some 150,000 tons went Into the production of tetraethyl lead to help insure the knockfree performance of countless car engines. The remainder filled scores of other modern needs; solder for the connec tions on complex electronic circuits, shielding" to protect medical and atomic technicians from hazardous radiation, ammunition lor "the sportsman's rifle or shotgun, type metal to make possible the wide dissemination of ideas in print. Twenty four of I he I,billed f-5l.al.es an* lead producers. Three stale:--, Missouri, Idaho and Utah account for fill per cent: of the nation's output. Sixteen per cent comes from a single mine, tile Bunker Hill mine, located in Ihc AMMUNITION y | i )"' iirJ, -p Ore Is on Its way to modem rich Coetir d'Alene Mining District near Kellogg, Idaho. In the past 75 years the Bunker Hill mine lias yielded some 25 million tons of high-grade lead-silver-zinc ores, worth an estimated three-quarters of a billion dollars at today's prices. This treasure, so legend lias it, was dis covered by a burro. As the story goes, Noah S. Kellogg, a gold prospector, was searching the hills of the Coetir d'Alene area when Ms animal bolted at night and wan dered across a. creek and up a Mil. Kellogg is quoted as saying he found the burro "standing upon a great out cropping of -mineralized---vein----inatter--and -looking' 4n--ap. parent-amazement- at "the marvelous ore shoot across- the canyon,"................................................................................... ...... Today" "the" Bunker' Hill" mine" is"'amaze' "of "more" than i". y n : iiifiLuviii i ..e :: . i--u;: : i. i 11 k :!! i i '/ y 1 i ir. ! :'(! photograph shown iho burro that discovered the Bunker Hill mine, mouth 100 miles of tunnels, crosscuts, and drifts. Because the mine is localted in a mountainous area, the miners find themselves working underground at anywhere from 3,600 feet above to 1,350 feet below sea level. When the Bunker Hill mine was discovered in 1886, only muscle and black powder were on hand to get at the ore body; dynamite was a new product just coming into use. Today when Bunker Hill men drive a tunnel or sink a shaft they may have at hand either Du Pont "Gelex" 2 or Du Pont Special Gelatin 60%, From the shafts, the miners cut drifts to the ore veins that extend through the rocky heart of the mountain. .................... Progress.. 714..P`l.u 1""a"Time...................... G/a by 8 inch cartridges, to break rock for an advance of 714 feet along a drift of 9VI feet by 8% feet cross section. The individual charges are detonated with caps and fuse or electric blasting caps, depending on conditions. Slopes lending from the drifts are cut and the ore in them is taken out by the eut-and-fillmethod,. . In working a stope,, crews -drill holes in the- ore body above them; loud and tamp charges; and then set off the charges at shift end. The broken ore falls to the floor of the stope. Later, men using powered drags and scrapers muck (move) the broken ore and drop it into a storage chute. The space excavated is then timbered. But as the. roof of the. stope goes higher and .higher--as more of the ore body is cut away--not even sturdy timber can hold back the crushing weight above. So, as the stope progresses, waste rock is hauled in as fill. The crew' stands on this waste rock as they bite further into the ore body. Timbers are buried as the stope is filled. In a single year more than 7,300,000 board-feet of timber goes into the mine never to twine out again; that's enough lumber to build 1,200 four-room frame houses. To keep the timber coming, The Bunker Hill Company has had to set up Its own sawmill. ' The timber Is left behind, but it has helped loosen nature's hold on one of her treasures. When the ore train breaks info daylight, it brings an ancient mete! vital to modern needs, How to Put a Now Pace on Your Home Town Here*s how East 'Orange, N,Jtf has done it. Tim city's Clean Up--Point Up--Fix Up campaign has earned il national recognition Pl'inrsinn prc^rjrnm, "can \ ir-iuirr, r,t ) nor : o', s n,:<. hirh, 'in;; I! i!! I - `I f: , ii = ! |.. ;\v J ! u; > \ > \ Ill ,VI.: /..! ( i* I*'.|< i v/f: >{ <: i 'i M I P ' -'.f! i .j . j ' j '!.;'!! 1 !" s.! .| | .j; [ I j :; ; > { ;..<! i -; r;,. ifii.lt. v! t: l \ li:o pcpulwi 'I'i^ whu always playu m - py You're In East Orange, N. J., and drop a piece of paper on the sidewalk. A voice behind you says: "Oh, oh-- would you mind going back and pick ing that up." Then comes the shock; you turn around and discover a waste basket has been talking to you. You see, you've hit town In the middle of the kick-off of the Clean Up--Paint Up--Fix Up Campaign held annually in East Orange and 6.000 other communities coast to .coast... LoQk.ji.rounti..and...you'11 ...dis cover... the. .waste... basket's... voice., comes trom-S'hidden-microphone'a-few-feet sway.""The "voice-behind-the-mike is probably that of Bill Reimer, East Orange's City Engineer, or Tom Cervasio, supervisor of refuse collection. On. high enthusiasm. and a low budget, Reimer and Cervasio, with the full support of Mayor-James W. Kelly, Jr., have sparked a program for a brighter and healthier city that last year won East Orange first prize in its population category in the Na tional Cleanest. Town...Contest The contest Is sponsored by Ilia non-profit National Clean Up--Paint Bp--Fix Up Bureau, Washington, D. C, Widespread Participotion A solid portion of Bait Orange's 87.000 people participate in the an nual program. In 1.959 more than 26 12,000 reports nf Clean Up--Paint Up -Fix Up activities around homes, stores, schools, and industrial; plants were turned in during the city's spe cial week. Exteriors of 2,207 homes were painted j so were 4,003. moms inside them,.People cleaned out their yards, basements, attics, closets. They fixed up their fences, porches, steps, roofs. To encourage this kind of activity, the City of East Orange differentiates .clearly, between, maintenance..and inn .provemente.... when..it.comes..to..tax assessments.... Says... Mayor.. Kelly;- -"People" "in" the-past" werevafrald" to" fix" their houses for fear of an increase in property tax assessment. But now we're making it clear to the people that when..you put on a new.roof it Is. considered as `maintaining' value/ not ^improving'," -For the success of its Clean Up- Paint Up--Fix Up Campaign East Orange leans heavily on the support of its service clubs, churches, schools, merchants, Chamber of Comrnaree and local newspapers. Promotion ma terial, obtained from" the "Clean Bp- Paint' Up-.'Fix Up Bureau, Is "placed in store windows and public build ings. The newspapers, especially the East Orange Record, give the cam paign continuous coverage. And any tiro. - a group-can be gathered, the city arranges a showing-of a slide film that provides a step-by-step study of home deterioration--from front curb to rooftop. Kids Set the Pace Throughout the campaign, hide set the tempo. Paint stores compete with soda parlors for juvenile trade as youngsters set out to gain recogni tion for Clean Up--Paint Up--Fix Up projects they complete at home. ...Scouts canvass-their .neighborhoods. asking' people ""to.take' part ""In..the city's-"program..At...school" the -kids' ' make'every 'effort' to'keep their"schools and school neighborhoods clean throughout the year. Mayor Kelly awards trophies to the schools with the best clean-up programs. Special classroom projects -find youths turn ing out prose and poetry on the merits of cleanliness. This sample from a poem about the pre-clean-up troubles of a dog named Rusty (by a heavy thinking seventh grader); Now in this labyrinth of -trash Rusty spent his (lays; With perked-up ears and quivering "time He trammed through this maze. Several stanzas later, the Mayor proclaims the Clean Up--Paint Up-- Fix Up Campaign. And so there's a happy ending to the story for Rusty and for East Orange, New Jersey, :. v W HAT'S T New Product Applications... A new llgltwlfIt. inttiwl for. baseball uniforms has been adopted, by ..four..major league dubs; the Giants, Yankees, Red Sox and Senators, The new fabric, made of ''Orion" acrylic fiber and wool, is more dur able than the conventional ol-woolen flannel; also it is more practical front cleaning view point, The Dodge Davis Co. of Hartford, t,, worked on development of this new flannel for two years prior ta Its recent introduction, J ; * OG i ;,'.ui I;: '! s... Dayton :< II {;! t:5-ed afloof .i- i urethane <...... ' w;!!. : i.dy-strlped ! I::!.!;1 'l - i ?: / '-'7l "pounds," \- ; . r-r r.;r:; MMy1ie" :' r <1 . ! . found at :, : .' - | : I merit StOr#S. New Product' Line... The "7" Seat line, a new line of Du Pont marine products, is being Introduced to yachtsmen in boat yards, marinas and marine stores this spring. Hundreds of thousand* of boating enthusiasts will see this new line an [di*pyJnlhe^M .product* that will Improve..performance.of.. . engine*.(outboard* andinboard*) and products.. to make it easier ta keep boats looking ship shape. Chemical products in the "7" Seas line and new marine sponges are seen at left. Initial introduction of these marine products in 17 states on the Eastern Seaboard and on the West Coast is taking place Hits spring; nation wide distribution will follow. A bright green garden hole that prt decades of service is now being inker to quality-conscious gardeners, Oufsta durability and weather resistance of the result from use of "Hypalon" synthetic rt for the rugged outer covering. "Hypal. an exceptionally tough elastomer tha long since proved itself in industry, Ths hose, called "Heirloom," is made by Rubber Company; it will withstand detei tion from garden chemicals, fertilizers, oils and greases. Exposure to the hottes light won't soften this hose. The quickest fi won't cause It to become brittle. These l< qualities assure long-range economy, "price; approximately $ 14' per "50-fbof Is A new LB, fag--Identified m "what the well-dressed cow should wear"--.is being pro -4 duced of "Zytei" nylon by inn C. H, Dana Co., Inc., of Hy-de Park, Vt. The identification k ic i makes it easy to Identify' in* ages of cattle or to distinguish different feeding or breeding groups. The tag is hung on a braided cord of Du Pont nylon; and Du Pont dyes for the a.. carry out the color schemes nl lire distinctive numbered kr r. S c i e i c d; M i I e. i t a $ v <; . :\ , -TS'-moti on-picture* ore-currently-availablo from ...Du Pont.. foi...showings- to - schools..and -to- -social,' tfvic, "service "clubs "'and "'churches;..Pietgres-lncfude historical, professional, and product subjects. Information on these motion pictures, including data on running time, and highlights about the pictures ore available in a new 28-page booklet. The booklet can be obtained from Motion Picture Section, Advertising Department, Du Pont Co., Wilmington, Del New..booklets.. recently...published..by...Du "Ponttnciude.."Hie-Lhe- of..'Slutloo'..Chrome -Complex' for "Treatment' of"" Pa p er.Prod wets'*;..."A..Review- DMF Dlmethyiform amide and DMAC Dimethylacetamide"; and "A Booklet on Processing of `Zytel1 Nylon Resins." You can obtain a copy of any of these booklets by addressing a letter to the Editor, Du Pont Magazine, Du Pont Company, Wilmington, Del ^ek'4&.ill' *- -t.-----: An automatic floor mot featuring brushes filled with "Tynex" nylon filament that clean the dirt off shoes quickly is now being manufactured by the Progressive Engineering Company of Holland, Mich. The "Miracle Mat," as it's called, is a heavy aluminum grill, rubber mounted within a stee! frame and built Into the floor. Brushes filled with "Tynex", running the width of the grill, are set In motion by a motor that is activated the instant the mat is stepped on. The brushes sweep up through the grill at hundreds of strokes per " d "Pyrelunt" iitore scent enannai, the; uper ntense point us sd on tn Utary aireraft to prevs nt oir collisions, is nw being Intrctdueed o the automotive w arid by 3u Font's f nishm 0 ivisior . High visibility HenHflco tion and safety mart#tgs of "Pyralux" on tru :ks and buse s W1 1 ma ce the vehicles more promlinertt at ni ght as weft as during the day, and hop sfully will left red jee hi jjhwqy accidents . -SO* H .jP|j" (Jjfj'i" E,.Bm&m.iillr'rff;'t'wliftth.ftyijs.i : , 1. 1: A cl d t't d N < > \ e i A -j.. |> i-.N:-.! j. .. * , i. , .}:. ; ; .;; i :. TV- re : PROBLEM Neoprertd* cement, developed by Crosxfielcf Products Corp. of Rosollo Park, NJ_, for outddo decks of ocean Imots, has solved a mcijjot flooring problem for a midwest food ptocessor. For years Ihe CDiioeii: floois in this processor's plant had bean eroded and cracked {left above) by enzymes and sugar solutions occy. riiig in the con vention of coi mturch to Htyui. Sutiikiikm was difficult, maintenance casts were up, and safety SOLUTION hozaids were present. Rut the special flooring of neoprene cement, known as ''Dex-O-Tex", has solved the problem. The new floor, only V-s thick, is easily hosed for cleaning, is flexible enough to eliminate cracking even wheie a ticks exist in the sub-surface. Sega? laden solution* cannot penetrate it. The food processor made a test In stallation in 1955, followed it with 1 00,000 square feel in 1957-59 and is now extending the use. ih . !- A N ew Look for Outdoor Plants lilt Pmii an it Iraties her somber time Jar pastels Tiic .somber, block lout' pi.mi unit a I, (lift cant end of Dti PonP.s Chambers Works in Ilecpwaler, New Jersey, went quietly shout Jier business of turning out tank loads ;l "1f y letie" nr|.{;tiiie- isocyanates; and nobody except her updating and mshilenaiKe men paid !ier much heed. She was wt-ll prelected from corrosion with a heavy black asphalt mastic hut was drub in appearance and here and there (.lie black was discolored by product spills. Then laSl year, thanks pari ly In (he product site produces, she traded her somber lone for a new look in pastels. Decked in ligltl green with lout lies of yellows and reds, she now glistens by daylight or floodlight; and she attracts alien lion as one of the find, full scab' production units to he coated will) a promising new material. But flic story is not to be found only in a pretty pic lure. Fur the plant's new urethane conNnj,1;, based on ''Helene", adheres to the maslk: without bleed-through. And I lie system dues nut seem to be harmed by cheinieal spills. 'File u rethane coaling is n cousin to a product now going into fine seat cushions highly resilient polyurethane foam made with *'f Ivlclle". JVbiinlenaiK-c men chose a light green to hide streaks that were* hound l<> show up on parts of the unit, it seems ime of the chemicals used iri the process finds a way to seep through even the tightest joint, anti this slight green staining had continually shown up here and then*. But when you can't `lick I hem, join them" so they painted her green. Contrasting colors won' list'd loo. In normal opera lion heat had turned several joints n light color, so the maintenance men simply pickl'd mi ivory-colored n re 11 lane finish io coal Ihese parts. And they touched up plat form edges and .stair edges with I ho same color. When it came to special color needs, they found the Newark, New Jersey, company supplying the urethane coaling for the job could match the colors desired. Con trol valves were coated with international orange. And alt of Dn FonFa normal safely code colors were used: red for tin; boxes, dark green for safely showers, yellow for potential hazards. AI present, the per gallon cost of urethane mainte nance coating is above that of many other finishers. The urelhane inaiiiienance cnnling used is a two package sys tem: Part A coni,iins a resit) with pigment ground in; Bart B contains the isocyanate in a solvent. The two parts *|| P.rtto,,tariy M- fofbt, ...hiBh gloss lJ|..of the. urethane coating ..mates plant unit a brighter, better place to work. Coating's gloss is durable. must be mixed in proper proportions and applied the same day. if durability lives up to expectations, it should help to compensate for the higher initial cost and the extra time for mixing. The urethane coating has been on the plant unit nine months, and is holding up well. A good rainstorm will . take, .off..any.. surface..dirt ..and ..leave .the...place. sparkling...... .....................Ojwrali.Iii!. Men Like .It,...Too.............................. ........The pastel color has h r. . Kmur for pv.n: -.p-'v.tm-: personnel, too. Unanimous!- i:-. - }*. to. pi.-mi r i>< i ter place to work, partial!u >- ........ gin : o . adds brightness that was impossible when the plant was shrouded In Mack. Du Pont is showing a bright face on another indus trial front with urethane coatings. Several of Du Punt's yellow anti green tank cars have been finished with a ure thane paint and are now riding the nation's railroads, carrying.tetraethyl. lead...compound.. to. gasoline...refiners.. Again...urethane.-finishes-have-combined.good looks.with oracticaliiv.......................................................................................... First tank ears with tough . Plane coaling are now riding tuition's railroads. Easy to <: coat has been used on lank tru I . .. other new uses for clear urethane coatings 'Flexible1 v rethene "MMi a"" Is.teeing.u sM ""as"wi re.ma rriel,.AntJ 'the"wire can be^soldered^without' stripping"away'"the""insulation: Patent leather shoes are now being given a urethane finish. Left: a urethane coated shoe. Right: an uncoated one after same wear. bo hard. And this harder finish gives even greater chem ical resistance and makes for easier cleaning......................... ......... But .pigmented uret|ane..coillMl..are only. .part..of. the.... .story,..Several...manufacturers..are.. making..onmpaekage.... .clear urethane flnlshes~In a range from flexible to hard....... for a variety of industrial applications,' Each finish has slightly different properties tailor-made for the specific application. The one-package system, in which the coat ing is cured by atmospheric moisture, was originally de veloped in DuPont's Elastomer Chemicals'Department laboratories., ...............: . Hard, clear urethane floor finish has proved itself in extensive field teste made by Du Pant's Finishes Division In textile mills and other industrial plants. It wears two to three times as long as a conventional floor varnish, is easy to clean, retains a high gloss, and is extraordinarily resistant to discoloration and. softening by lubricating, oils. and greases, ................................................ .. ................... A-urethans coating made from drying oils - modified... with "Hylene" is being used for finishing farm machinery. It is also possible to make clear floor finishes from these modified oils. Technology worked out in Du Font's Elas tomer Department laboratories is contributing to the de velopment of these products. A flexible urethane coating is being used as a wire enamel. It is an excellent insulator; and wire with ure thane enamel can be soldered without stripping away the Insulation. And a manufacturer is using a urethane finish as an Inside coating for pleasure boats because of its abrasion resistance, .........Automobile., manufacturers have turned to a ..urethane.... finish, ...too--for- rubber ...window., seals..The-uiethane-coat.... - protects the.rubber from..ozone exposure and prevents... ""cracking: And'-s" plus 'for' tits "car "owner i"" winding ""up "a.... window takes less effort because the urethane finish re duces the seal's coefficient of friction. r. TfVwJirf OfU iu kimsa Ws tviHis oily 4.011 Toughens Toys for Tots' Torture Rubber toys are being coated with a dear urethane finish based on "Hylene". The toys resist-cracking, and their glossy coat doesn't soil easily, ' " ' A manufacturer in Boston supplies New England leather houses with a urethane finish based on "Hylene". The finish goes on patent leather; makes it tougher, longer . lasting...Many in the leather industry, say this new finish .. SO" far superior to-other patent leather finishes that it " may spark new consumer interest in this once very popular "" material." " ...... The technology of urethane coatings, much of it developed by Du Pont, has already made a considerable impression on industry. The search continues for new uses . ^ . for this unique malarial that combines hardness, toughness, ' " 'abrksion resistance--and bright good looks. X-ray photograph (here enlarged 3 times and shown in color) ol magnetic clutch manufactured by Dynamic Instrument Co., Westbury, L. I., N. Y. INSIDE STORY: magnetic-clutch terminals that hold tight The feed-through terminals on magnetic clutches and clutch brakes don't have an easy time of it. With very little space for attachment, conventional terminals are prone to pop out and rotate under torque. Terminals must withstand 500 volts potential between the case and terminal, and operate continuously at 400F. The answer? New, melt-processible Te f l o n FEP-fluoroearbon resin. The two terminals are molded together of FEP resin and inserted from the inside of the ease. This new member of the family of Te f l o n fluoro carbon resins provides all the necessary insulating, thermal, mechanical and fabrication properties. In side the potted case, where temperatures run higher, wires are insulated with Te f l o n TFE resins for utmost reliability. In addition to the properties demonstrated in this application, Te f l o n resins -- both FEP and TFE -- offer remarkably low friction and almost universal chemical inertness. If you would like to find out more about how Te f l o n fluorocarbon resins make possible improved mechanical and electrical designs, send for your copy of a booklet describing in detail the unique engineer ing properties of these resins. Write to: E. 1. du Pont de Nemours N Co. (Inc.),Polychemicals Department, Room DM56, Du Pont Building, Wilmington 98, Del. In Camilla: Du Pont of Canada Limited, Box 660, Montreal, Quebec. <mm> TEFLON FLUOROCARBON r e s i n s BETTER THINGS FOR BETTER U VIN G .., TH RO U G H CHEMISTRY Tef l o n is Du Paul's registered trademark for its family of fluorocarbon resins, including TFE (tetrafluorocthylene) resins and FEP (Jiuorinated ethylene) resin. You can cast farther... cover more water .. .when you fill your reel with Stren' -Minin SRffmummmMHH. H-. I--ffffS-aP,.S- Because STREN is as much as 20% stronger than standard monofilaments, it has a thinner diameter per pound test. The thinner the diameter, the longer the cast. Now, you can cast farther without sacrificing linestrength! And because STREN has a smaller diameter than standard monos, it's limper-- guarding against kinking, looping and "sets" on the spool. You'll be pleased, too, that the stretch in s i r e n has been reduced by onethird over standard monofilaments, with just enough left in to absorb the shock of a heavy strike. And the gunmetal grey color of si REN is permanently built into the line. s t r e n oilers advantages for all kinds of fishing. For fresh-water spinning, its smaller diameter and extra limpness can give you longer casts and better coverage. In the heavier pound tests needed for surf spinning, s t r e n lets you cast out where the big ones are and still have all the necessary line strength. In trolling or bottom fishing, its extra-thin di- ameter offers less resistance to the water and allows the use of lighter sinkers. And, of course, this smaller diameter lets you put more STREN on a spool. When you lie into big fish, you can have a feeling of greater security on Jong runs. STREN spinning line is available in 100-yard spools, single, two or six spools connected, from 2- to 30-lb. test. Belter pick up a couple of spools from your tackle dealer or any other retail outlet where spinning line is sold. VALUABLE BOOKLET: Informative 56-page booklet gives the latest on spin fishing, casting, litres, lines and knots . . . pins tips and answers to many questions that will help yon improve your fishing. Send your name, address and I0<t (no stamps, please) to rover cost of handling to: E. I. du Font de Nemours & Co. (Inc.). Dept DM-7. Room 2507S, 3rd and Creenhi/l, Wilmington 98, Del. Top fishermen everywhere are sold on STREN "In one short word, I think STREN is`terrific.' It casts like a dream and was made for the bonefish flats." Jim Mortonhoff, President Florida Outdoor Writers Assn. Homestead, Florida "STREN casts beautifully, slips through guides nicely and is a pleasure to cast. I got distance without effort." Enos Bradner, Outdoor Editor The Seattle Times, Seattle, Wash. ``Thirty-five minutes of fighting a record 8-lb. 4-oz. brown trout couldn't break 6-lb. test STREN." John Molinski, 359 Hoover Ave., C ... Bloomfield, N. J. Stren Monofilament Spinning Lines and Leaders (fiTPfc New STREN level leader packs are available in pound lests from 2 lo 30, and in lengths from 8 to 20 yards. New STREN knotless tapered leaders come in a range of sizes. 7H-ft. trout sizes, 6x to Ox tippets. 9-ft. trout and sal mon, 6x to 6/ 5 tippets. BETTER THINGS FOR BETTER LIVING.. . THROUGH CHEMISTRY The greatest advance in spinning tine since spin fishing began! c