researchers! chemists! i of · researchers! chemists! manufacturers! productionmen! teachers!...

14
Researchers! Chemists! Manufacturers! Production Men! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTE S AND SYNTHETICS EDITED BY -MORRIS D. SCHOENGOLD WITH THE COLLABORATION OF AMERICA'S FOREMOST CHEMICAL AND INDUSTRIAL LABORATORIES THIS AUTHORITATIVE WORK HELPS YOU KEEP PACE WITH PROGRESS IN SYNTHETICS The First Book of Its Kind In Any Languagel ... Here Are a Few of the Many Organizations that Helped Make This Volume Possible: American Cyanamid Co. * American Iron & Steel Institute - Armstrong Cork Corp. * Bakelite Corp. * Borden Co. * Colgate-Palmolive-Peet Co. * Commercial Solvents Corp. * Dow Chemical Co. * E. I. Du Pont de Nemours & Co. * Eastman Kodak Co. * General Electric Co. * B. F. Goodrich Co. * Hercules Powder Co. * Monsanto Chemical Co. * Pittsburgh Plate Glass Co. - Union Carbide & Carbon Corp. * U. S. Rubber Co. READ WHAT THESE LtADING JOURNALS SAY: "An invaluable reference book covering products easy reference."-Southern Power and Industry which have been recently developed to replace critical materials difficult or impossible to obtain. To the chemist this encyclopedia of raw ma- It discusses substitutes of interest to all branches terials, chemicals, processes, substitutes and of industry..... and plastics and other synthetics ............ synthetics, will prove extremely useful ................. This, which for years have been replacing many of the the first compendium of its kind, shows that 'sub- commonly known applications of metal." stitutes' often are superior to the materials -Chemical and EngineeringNews replaced." -Scientific Monthly "This unique encyclopedia presents invaluable "A first rate job based on firsthand information information that is not available even in the best ... not mere listings, but the whole story: Proper- libraries without thorough time-consuming ties, Solubility, Substitutes, Uses, Processes. In searches through the literature.... " these days of unforeseen difficulties and new -Journal of American Medical Association problems, no chemist, research man or planning "This encyclopedia should prove useful to in- manufacturer should be without it. We recom- dustrial and laboratory chemists who are in search mend it highly... ." -Science Illustrated of new and improved materials." "This new and unusual book lists thousands -Science News Letter of raw materials, chemicals, processes, substi- ". . The book facilitates rapid decisions ... " stitutes, synthetics, all in alphabetical order for -General Electric Review TELLS WHAT YOU WANT TO KNOW ABOUT- Abrasives * Absorbents * Acetylene * Adhesives * Antise tics * Baking Powders * Bleaching Agents * Bristles * Burlap * Butane . Calcium Lights * Candles * Castor Oil * Catalysts * Celluloid * Cellulose Acetate * Cement * Ceramics * Cheese * Chewing Gum . Cinnamic Acid * Cleansers * Coatings * Concrete * Confectionery * Conveyor Belts * Copper * Cosmetics * Dehydrating Agents . Dentifrices * Disinfectants * Drugs * Drying Agents * Drying Oils * Dyes * Egg White * Electroplating * Emulsifying Agents . Enamel Ware * Enamels * Ester Gum * Explosives * Fertilizer * Fillers * Fire Extinguishers * Fireproofing * Flameproofing . Flatting Agents * Flavors * Floorings * Foaming Agents * Fumigants * Fungicides * Furs * Gaskets * Gelatin * Germicides - Gladiolus Thrips * Glass * Glazes * Gum Inhibitor * Gums * Herbicide * Horn (Artificial) * Horsehair * Humectants * Hydrogen Peroxide. Hygroscopic Agents * Ice Cream * Impregnants * Inks * Insecticides * Insulators * Iron * Jewelry * Kalsomine * Lacquers * Latex . Lead Alloys * Leather * Lenses * Linoleum * Lotions * Lubricants * Magnesium * Matches * Methyl Amine * Methyl Cyanide * Mica . Mordant * Mortar * Mothproofing * Mounting Medium * Musk * Nitrocellulose * Nitrocellulose Lacquers * Nutrients * Odorants * Ointments * Opacifiers * Paint Driers * Paints * Paper * Parchment * Patent Leather * Pattern Plates * Perfumes * Pestles * Pewter . Phonograph Records * Photography * Piccolyte Resins * Plasters * Plasticizers * Plywood * Polishes * Preservatives * Putty * Pyrotechnics . Refrigerants * Resins * Rock Wool * Roofing Material * Rope * Rosin * Rubber * Rubber, Synthetic * Saftey Glass * Sealing Wax . Shellac * Shoe Polishes * Silica Gel * Silica Glass * Smelling Salts * Smokeless Powders * Soap * Solders * Storage Batteries * Sulfuric Acid * Tannic Acid * Tanstuffs * Textile Dyeing * Textile Printing * Textile Sizing * Textiles * Tin Stamping * Tobacco * Type Metal . Varnish * Varnish Driers * Vibration Absorber * Washing Machines * Water * Waterproofing * Weather Stripping * Wetting Agents . Whitewash * Wood Impregnant * Wool * Yeast * Zinc, etc. $10.00 LIMITED EDITION ORDER WITHOUT. DELAY Mail Coupon promptly PHILOSOPHICAL LIBRARY, Publishers 15 East 40th Street, Dept. Z, New York 16, N. Y. Please send me.......copies of the ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS, at $10.00 per copy. Enclosed are $. NAME ADDRESS CITY STATE_ I 9

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Page 1: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

Researchers!Chemists!Manufacturers!

Production Men!Teachers!Engineers!

IENCYCLOPEDIA

OF

SUBSTITUTESAND

SYNTHETICSEDITED BY -MORRIS D. SCHOENGOLD WITH THE

COLLABORATION OF AMERICA'S FOREMOSTCHEMICAL AND INDUSTRIAL LABORATORIES

THIS AUTHORITATIVE WORK HELPS YOU KEEP PACE WITH PROGRESS IN SYNTHETICSThe First Book of Its Kind In Any Languagel ... Here Are a Few of the Many Organizations thatHelped Make This Volume Possible: American Cyanamid Co. * American Iron & Steel Institute -Armstrong Cork Corp. * Bakelite Corp. * Borden Co. * Colgate-Palmolive-Peet Co. * Commercial SolventsCorp. * Dow Chemical Co. * E. I. Du Pont de Nemours & Co. * Eastman Kodak Co. * General ElectricCo. * B. F. Goodrich Co. * Hercules Powder Co. * Monsanto Chemical Co. * Pittsburgh Plate Glass Co. -Union Carbide & Carbon Corp. * U. S. Rubber Co.

READ WHAT THESE LtADING JOURNALS SAY:"An invaluable reference book covering products easy reference."-Southern Power and Industry

which have been recently developed to replacecritical materials difficult or impossible to obtain. To the chemist this encyclopedia of raw ma-It discusses substitutes of interest to all branches terials, chemicals, processes, substitutes andof industry..... and plastics and other synthetics ............synthetics, will prove extremely useful .................This,which for years have been replacing many of the the first compendium of its kind, shows that 'sub-commonly known applications of metal." stitutes' often are superior to the materials

-Chemical and EngineeringNews replaced." -Scientific Monthly"This unique encyclopedia presents invaluable"A first rate job based on firsthand information information that is not available even in the best

... not mere listings, but the whole story: Proper- libraries without thorough time-consumingties, Solubility, Substitutes, Uses, Processes. In searches through the literature...."these days of unforeseen difficulties and new -Journal of American Medical Associationproblems, no chemist, research man or planning "This encyclopedia should prove useful to in-manufacturer should be without it. We recom- dustrial and laboratory chemists who are in searchmend it highly... ." -Science Illustrated of new and improved materials.""This new and unusual book lists thousands -Science News Letter

of raw materials, chemicals, processes, substi- ". . The book facilitates rapid decisions ..."stitutes, synthetics, all in alphabetical order for -General Electric Review

TELLS WHAT YOU WANT TO KNOW ABOUT-Abrasives * Absorbents * Acetylene * Adhesives * Antise tics * Baking Powders * Bleaching Agents * Bristles * Burlap * Butane .Calcium Lights * Candles * Castor Oil * Catalysts * Celluloid * Cellulose Acetate * Cement * Ceramics * Cheese * Chewing Gum .Cinnamic Acid * Cleansers * Coatings * Concrete * Confectionery * Conveyor Belts * Copper * Cosmetics * Dehydrating Agents .Dentifrices * Disinfectants * Drugs * Drying Agents * Drying Oils * Dyes * Egg White * Electroplating * Emulsifying Agents .Enamel Ware * Enamels * Ester Gum * Explosives * Fertilizer * Fillers * Fire Extinguishers * Fireproofing * Flameproofing .Flatting Agents * Flavors * Floorings * Foaming Agents * Fumigants * Fungicides * Furs * Gaskets * Gelatin * Germicides -Gladiolus Thrips * Glass * Glazes *Gum Inhibitor * Gums * Herbicide * Horn (Artificial) * Horsehair * Humectants * Hydrogen Peroxide.Hygroscopic Agents * Ice Cream * Impregnants * Inks * Insecticides * Insulators * Iron * Jewelry * Kalsomine * Lacquers * Latex .Lead Alloys * Leather * Lenses * Linoleum * Lotions * Lubricants * Magnesium * Matches * Methyl Amine * Methyl Cyanide * Mica .Mordant * Mortar * Mothproofing * Mounting Medium * Musk * Nitrocellulose * Nitrocellulose Lacquers * Nutrients * Odorants *Ointments * Opacifiers * Paint Driers * Paints * Paper * Parchment * Patent Leather * Pattern Plates * Perfumes * Pestles * Pewter .Phonograph Records * Photography * Piccolyte Resins * Plasters * Plasticizers * Plywood * Polishes * Preservatives * Putty * Pyrotechnics .Refrigerants * Resins * Rock Wool * Roofing Material * Rope * Rosin * Rubber * Rubber, Synthetic * Saftey Glass * Sealing Wax .Shellac * Shoe Polishes * Silica Gel * Silica Glass * Smelling Salts * Smokeless Powders * Soap * Solders * Storage Batteries * SulfuricAcid * Tannic Acid * Tanstuffs * Textile Dyeing * Textile Printing * Textile Sizing * Textiles * Tin Stamping * Tobacco * Type Metal .Varnish * Varnish Driers * Vibration Absorber * Washing Machines * Water * Waterproofing * Weather Stripping * Wetting Agents .Whitewash * Wood Impregnant * Wool * Yeast * Zinc, etc.

$10.00LIMITED EDITION

ORDER WITHOUT.DELAY

Mail Coupon promptlyPHILOSOPHICAL LIBRARY, Publishers15 East 40th Street, Dept. Z, New York 16, N. Y.Please send me.......copies of the ENCYCLOPEDIA OF SUBSTITUTESAND SYNTHETICS, at $10.00 per copy. Enclosed are$.NAME

ADDRESS

CITY STATE_ I9

Page 2: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

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the ONE word to describe

Spalteiwiz U HAND Atlas i*u.muaa. aamua-^m

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HUMAN ANAl OUlThe one-volume edition of this standard classic is complete in every

respect and includes every illustration shown in the three-volume edition.Full-page illustrations show the various aspects of the body and its

parts clearly labeled for easy identification. B. N. A. nomenclaturehas been used throughout the text, but the older nomenclature is

also given where it will prove helpful. This edition is divided into threesections, each corresponding to one volume of the three-volume edition. The

first section covers Bones, Joints and Ligaments; the second, Regions, Muscles,Fascial Heart, Blood Vessels; and the third, Viscera, Spinal Cord,

Brain, Nerves, and Sense Organs.This Atlas, because it is complete, will prove invaluable as a ready

reference at the dissecting table.

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BY ()Yerner SpaliekolFormerly Professor of Anatomy in the University, and Custodian of the Ana-tomical Museum,ILeipzig. Edited and Translated by LE.WELLYS F. BARKER, M.D.

AVAILABLE AGAIN1te0"4eg

7th EDITION902 PAGES * 994 ILLUSTRATIONS

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J. B. LIPPINCOTT COMPANYEast Washington Square, Philadelphia 5, Pa.

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Page 3: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

Radioactivity Equipment Exclusively

u#Ps1

Available individually

Cyclotron Specialties units are designed for effi.cient "teamwork". Each is part of a complete,correlated line... evolved through twelve years ofexperience in the exclusive manufacture of radio.activity measuring equipment.

Developed at the request of, and with the collab-oration of the nation's leaders in radioactivityresearch, Cyclotron equipment has gained generalacceptance throughout the entire world*.

-I= ; alif°?nia

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*These are only afew of the users ofCyclotronSpecialties Equipment:

GENERAL ELECTRIC COMPANYU. S. ARMY AND NAVYFORD MOTOR COMPANYBRITISH ADMIRALTYE. 1. DU PONT DE NEMOURS & CO.SOCONY VACUUM OILMAYO CLINICWESTINGHOUSE ELECTRIC CORPORATIONBELL TELEPHONE LABORATORIESUPJOHN COMPANYMONSANTO CHEMICAL COMPANYAMERICAN CYNAMIDE & CHEMICAL

CORPORATIONGENERAL ELECTRIC X-RAY CORPORATIONOver500American and Foreign Universities

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Page 4: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

*See this issue of Science, page 19.

FREE ANSWER BOOK

88-page, illustrated hand-bookFREE to chemists and process men!

A down-to-earth, handy reference book thatyou'll use many times. Gives theory and ap-

plication of pH, Chlorine and Phosphate Con-

trol in 34 different industries. Included are

detailed descriptions of the amazingly simple,speedy and accurate Taylor equipment that

can cut your testing time and effort to

the minimum. Tells how

l-//,,, / Taylor Comparators allow

you to make accurate pHand chlorine determina-tions in 60 seconds. Youneed "Modern pH &

Chlorine Control"get it!

Seeyour dealer today ... or write directfor your complimentary copy.

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3 ReasonsPERSONNEL PLACEMENT*is the preferred and bestplace to advertise employment

notices

ZlI1PUBLISHED WEEKLY

Most lournals are monthly and quarterly...too late when the need Is Immediate. Noticesreceived as late as Wednesday are printed the

next week.

a

86%of Science readers regularly read their copieseach week . . . and all fields from astronomy

to zoology are represented.

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HUNDREDSof college, university, government, and indus-

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Page 5: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

Years ago Alexander Graham Bell dreamedof "a machine that should render visible tothe eyes of the deaf, the vibrations of theair that affect our ears as sound." He neverrealized that dream, but his researches ledto the invention of the telephone. 4

Today Bell Telephone Laboratories haveturned the dream into a fact-translatingthe spoken word into readable pictures.By this new invention of the Laborato-

ries, the talker speaks into a microphone.Vibrations of the voice are unraveledthrough electronic circuits, and then arereassembled as luminous patterns whichtravel across a screen. Each syllable ofsound has a distinctive shape and intensity.

Visible speech is still in its infancy, andis not yet available to the public. But edu-cators of the deaf are now evaluating it.

S I E N S U N R A V U L S S P EET S%

Science unravels speechIndications are that the deaf can learn toread the patterns and, by comparing thepatterns their own voices make with thepatterns of correct speech, can improvetheir diction.

Patterns of visible speech also providea means for analyzing and recording soundin the study of phonetics and of languages.Eventually, visible speech may make pos-sible visual telephony for the deaf.

This is but one of many contributions'by Bell Telephone Laboratories to the un-derstanding and control of sound.

h BELL TELEPHONE LABORATORIES Exploring and Inventing, Devisingand Perfecting for Continued Improvements and Economies in Telephone Service

13

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Page 6: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

14

Page 7: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

jir~ ~ ~

ALL-STEEL GUARDModern research requires higher speed cen-trifuge equipment. Higher speeds neces-sitate stronger construction for greaterprotection. The "All-Steel" guard bowlsupplied on the "Reinforced" Size 1, TypeSB and "Reinforced" Size 2 Centrifugesinsures full protection under all operatingconditions.

As the name implies, the All-Steel guardis fabricated entirely of heavy boiler platesteel with all seams heavily welded. Whenyou order your next Size 1, Type SB orSize 2 Centrifuge, specify the ReinforcedModel with the "All-Steel" boiler plateguard.

INTERNATIONAL EQUIPMENT CO.352 Western Ave. Boston, Mass.

Makers of Fine Centrifuge

PLEASE!IF YOU ARE CHANGING YOUR

ADDRESS, please let us know, if possible,four weeks in advance, giving old as well as

new address, and adding zone number to

meet postal requirements. If you are un-

able to notify us, so as to affect succeedingissues, kindly leave instructions and postagewith your postmaster for forwarding your

copy. Second class matter requires postagewhen remailed to a different address.

SCIENCE1515 Massachusetts Avenue, N. W.

Washington 5, D. C.

FOR LATEST AUTHORITATIVEREVIEWS ON LABORATORY

PROC EDU RES

A monthly publication com-piled for laboratory direc..tors, technicians and physi-cians. Full of essential factsand reviews of current literature on labora-tory procedure, professionally edited by R.B. H. Gradwohl, M. D., Sc. D. A neces-sity in the modern laboratory. Published by

HISCHOOL OFLABORATORY

3514 Lucas Ay. .St. Louis, Mo.

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Page 8: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

9?~~~~'tCRYSTALLINEAMINO ACIDS

Availablefor

Nutritional Research

Small Convenient Packages-,Economically Priced

Writefor complete price list.

ke.1.I4 LI IdtsI4II Ii'AI [.±i I.. I.[.60 LABORATORY PARK * CHAGRIN FALLS, OHIO

Laboratory Pre-Tested

"Vitamin Free" Casein Hydrolysate GBI-(acid hydrolysed) for U.S.P. and otherstandard assays for B-complex vitamins,amino acids and bacterial nutrition studies.100 cc. serum bottles-$18.00 per dozen.

"Special" Casein Hydrolysate GBI-same asabove product but more economical to usefor all those procedures where its content oftrace quantities of niacin will not interfere.100 cc. serum bottles-$15.00 per dozen.

Related 051 ProductsSpecial Media, Crystalline Vitamins and Amino Acids. (Enzy.matic)Hydrolysates ofLactalbuman and Casein-powderform.

Write for prices and information

GENERAL BIOCHEMICALS, INC.60 LABORATORY CHAGRIN FALLS,

PARK I.AI OHIOHo.RaU.i Saoff.

16

PHOTOVOLTOptical

Fluorescence Comparator

For quantitative analysis of fluorescent solutions bymeans of fluorescent standards; for vitamins, quinine,atabrine, drugs, oils, organic and inorgani compounds.

High sensitivity Simple In operationSuitable for use under any power line andatmospheric conditions including tropics.

Writefor literature

PHOTOVOLT CORP.95 Madison Ave. New Yorki16, N. Y.

Klett made . .class Absorpson Cells

Fused under high temperature with acid, alkali and othersolvent resistincent Optical flat walls. Many stock siuss.

Special euients made to orderSele Mnanufacturer is thoftd tts. fused lectrepheresis cels

Makers of complete Electrophoresis Apparatus-KLETT SCIENTIFIC PRODUCTS--

Klett-Suu maese Phetoetecti Celerameters. Celerime-

trepheresms Apparatus, Glass Standards. Klett Reageats

Klett Manufacturing Co.179 East 87th Street, New York, New York a

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Page 9: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

New Wiley BooksVEGETABLE GROWING

By J. S. SHOEMAKER, Professor of Horticulture and Head of the Department of Horti-culture, Ontario Agricultural College.

A logical treatise which applies research findings to successful vegetable growing. Includes athorough discussion of the production of high-quality vegetable seed as basic to good crops. Makesclear the causes of various frequently misunderstood adverse effects in cultural practices. Thisthorough textbook is complete with material directly applicable to vegetable growing under variousconditions over a wide range of territory. Ready in May.

Approximately 506 pages; 5½ by 8%; Probable price $4.50

THE CHEMISTRY and PHYSICS of ORGANIC PIGMENTSBy LYDE S. PRATT, Technical Consultant, Organic Pigment Department, CalcoChemical Division, American Cyanamid Company.

An authoritative analysis of the chemistry and physics of organic pigments, and the dyestuffs orcolors from which they are derived. Among the topics discussed are: theoretical considerations ofthe relation between color, and chemical and physical structure; the raw materials for syntheticorganic pigments; methods of testing known and unknown pigments; and analytical procedures andidentification. Ready in June.

Approximately 335 pages; 6 by 9%; Probable price $6.00

UNIFIED CALCULUSBy EDWARD S. SMITH, Professor of Mathematics; MEYER SALKOVER, Associate Pro-fessor of Mathematics; and HOWARD K. JUSTICE, Professor of Mathematics; all atthe University of Cincinnati.

A refreshing, thorough, and penetrating approach to calculus, stressing the interrelationship of thevarious phases of the subject. Some distinguishing features of this unique book are: greater stresson differentials-the connecting link between differentiation and integration; use of the concept ofspeed to motivate rate of change; material on mean value by integration; and extensive treatment ofproducts of inertia, and the adoption of right-handed space axes. Ready in April.

Approximately'509 pages; 5½ by 8½; Probable price $3.75

RUSSIAN-ENGLISH TECHNICAL and CHEMICAL DICTIONARYBy LUDMILLA IGNATIEV CALLAHAM, Technical Translator.

An important publication for all chemists, engineers, and other scientists interested in consultingthe original Russian sources. This book is a scientifically organized reference to 80,000 terms, witha comprehensive coverage of organic and inorganic chemistry, and chemical technology and mineral-ogy. Also extensively covered are metallurgy, mining, geology, engineering, physics, botany,pharmacy, and the more common terms in agriculture, medicine, aeronautics, and military science.Besides the terms used in research and academic work, the book includes those used most frequentlyby industrial technologists. Ready in March.

Approximately 794 pages; 5-2 by 74; Probable price $10.00

JOHN WVILEY & SONS, Inc., 440-4thAve., NewYork16, N.Y.

17

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Page 10: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

THE NEW BOOK BY

Ivoan RayTannehdil

Author of HURRICANESand WEATHER AROUND THE WORLD .Chief of the Division of Synoptic Reports,

U. S. Weather Bureau

. TS CAUSES II

ITS CAUSES l lAND EFFECTS

ACOMPIREHBN5iVz study of the causes: of thisnational peril and the means of combating

it-including a revolutionary plan for foodproduction and distribution in accordance withweather prospects.Of vital importance to anyone concerned

with the rate of rainfall, this book analyzesthe key signs of drought and the forces thatproduce it-the effect of sunspot cycles, vari-ation of ocean and continent temperatures, andcirculation of the atmosphere.Jut published, 276 pogef, sig ilinsh'atiw,

$3.00.

At your

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PrincetonUniverity Press

ttul PSI 2= Cwas=

LaMOTTE CHLORINECOMPARATOR(Roulette Type)

For control of chlorine dosage in the treatment ofwater, sewage, etc. Contains an internal dalitereading arrangement. Standards are contained ina revolving drum, permitting readings to be madein a minimum of tune and always under uniformlight conditions day or night. Range of chlorineconcentration 0.1 to 10.0 ppm. Higher concentra-tions measured by dilution. The unit comes com-plete with color standards, reagent solution, com-parison tubes, extension cord and switch and fullinstructions.

Price $56.00 f.o.b. Towson 4, MarylandIfyou do not hae the LaMott A B C ofpH Contrd,

a aempsmeutary copy wil be sn uponreqe WThout obliaion.

LaMotte Chemical Products CompanyDept. "H" .Towota 4, Md.

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for indexing and storing referncesample-.-100 samples in 3S Inchesshelf space; 1000samplesin 33 inches.

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B ... .0ConainsSO2l'xi'viab. $2.50each,$24.dosC ... Contins 503' x1' vials. $3.50 ah, $36. dos.

Write Depk S. Orders filled immediately.Hydrion (short range and special), pH test papers.

Write for latest information.

Re P. CARGILLE 118 Liberty StreetNew York 6, N. Y.

18

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Page 11: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

Personnel Placement

CHARGES FOR CLASSIFIED ADVERTISINGRegular setting 10aa word. Minimum charge $250 for each ier-tion. A box number counts as 3 words of the advertisem t (eg. 25words plus box number equals 33 words). Make checks payableto the A.A.A.S. All insertions must be accommied by correctremittance and sent to the Adv. Dept. A.A.AS. Please addressreplies as follows: Box number, ScOxzcE, 1515 Mass. Ave., N.W.,Washington 5, D. C.

POSITIONS WANTED

The Caifonl Me l Bureau, Agency for scientific and layp inmedicine, biology, chemistry, physics and allied sciences, spplies teacer,

research workers, laboratory dieners, skilled oice hiep. Nett ice

Registration free. Your patronage reectfully solcited. T

Armz MwxcAL BuEAu, Agency, Arcade Medical Center, ColoradoStreet, Pasadena 1, CalifMrna.

Experienced research werker desires responsible position in research insti-tution or university in biological research. Degrees in biochemistry,bacteriology and pathology. Many publications. Give full particulars mfirst letter. Box 787, Scnxcx.

Phyn us Laboratry andI.-ay Teel a IsI_ Firata, Iysleal leThrpiAts let us help You secure a poition. Our seric,

establihd 189, is Nationwide. Write u toda. All informationcodtial. Asozs' Wocwwer Baur, 30 North Michigan. hcago 2.

Physicist; PhD, university teaching and industrial experience, considerableadministrative experience, veteran, prefers the West. Box 790, SCIENCE.

Zoolojist: (Genetics, Physiology) Twenty-one years college teachingexperience, mostly in western state university. Now located east ofMississippi. Publications. Undergraduate and three years of graduatestudyallatleadinguniversities. Prefer South. Box795 SCIENCE.

Orgnic Chemist, PhD, age 38. Research, development, supervision insynthetic resins, high polymers, surface actives, plasticizers adhesives,coatings, and general organic industrials. Present salaryt!over$8000.Salary secondary to opportunities. Box 803, SCIENCE.

Anatomist. who has served as professor and head of department of anatomyin university medical school for the past 12 years, is available; is especiallyinterested in position involving gross and neuro anatomy; AB,AM, MDdegrees, leading universities; for further information please write BurneiceLarson, Director, Medical Bureau, Palmolive Building, Chicago ":

Academic position, Head of department desired by organic-biochemistPhD, with broad training in related fields. An experiencedlenthusiasticteacher, interested in research would enjoy an active role in a growinginstitution. Highly recommended. Age 41, married. Box 799, SCIENCE.

Zoologist: Ten years successful University teaching inITBioloty generalzoology for premedical students, general physiology; specialized inmgenetics,research in mammalian genetics. Box 800, SCIENCE.

Biochemist: PhD. Minor, bacteriology. Desires medical school researchor teaching appointment which will permit study toward MD. Veteran,Age 34. Box 801, SCIENCE.

POSITIONS OPEN

Boiler Water Chemist Analytical Supervisor $6000; Analytical Chemistinorganic product control $4200; PhD experienced protein fractionation;women chemists, secretarial training, do patent work; Physical-OrganicChemist MS liaison work $5400; chemist broad experience food productsresearch and production; write Chemical Department, Position SecuringBureau (Agency), 45 John Street, New York, N. Y.

Bacteriologistswanted: 2 young men, recent or incipient Ph.DIconsidered.University medical school teaching appointments. Extremely light teach-ing load with bulk of time devoted to own research. Beginning fall term.Salary $3000-4000; rank dependent on experience; Middle West. Box 802,SCIENCE.

Personnel Placement

POSITIONS OPEN

Posit sOpen: (a) Research chemist in plant physiology to ascertain roleof minor chemical elements in soils and plants. MS required, PhD pre-ferred; $4000; southern university, full time research. (b) MicrobiologistPhD or equivalent. Training in soil and fermentation microbiology andorganic analysis required; duties consist of research bearing upon hydro-carbon microbiology; Pacific coast. (c) Man with doctor's degree inphysics and also, one similarly equipped in mathematics; department ofphysics, middle western university; rank instructor or assistant professor;S3000-$4000. (d) Assistant professor, department of bacteriology, uni-versit medical school; duties include teaching immunology and somegeneral bacteriology, research; $3700. (e) Young scientist, well trained inphysical chemistry to join research staff of large industrial company; atpresent laboratory relatively small but company has expansion programand is remodeling building to be used strictly for research laboratories;Chicago area. (f) Statistician; division of cancer control, state depart-ment of health; should be able to develop broad statistical departmentcovering several public health activities as well as the cancer field- researchminded person required; although man preferred, woman eligibie; $4500.(g) Bacteriologist to head department of bacteriology control; duties in-clude all sterility testing, germicidal testing, safety testing in manufactur-ing of biologicals; experience in biologicals and administration desirable;$3000. (h) Director of research; physician who has specialized in one ofthe sciences preferred; should be well versed in the field of hypertensionwith considerable experience in pharmaceutical research; small companyhaving excellent plans for expansion; Middle West; minimum $t750.Medical Bureau (Burneice Larson, Director) Palmolive Building,Chicago 11.

The Market PlaceLANGUAGES

Ln s mas languae ea. At home learn to speak SpnhPortuguese, Italian, French, German, Russian or any of 29 laua byquick, easy L phone Conversational Method. You learn b listeninSave time, work, money. Linguaphone correspondence courses are available to veterans under the G. I Bil of Rights. Send for free book. Stateif G. I. INOUAPONx INsms vx, 37 R. C. A. Building. New York 20,N. Y.

Technical Trlatis made from or into any language: Medicine, Chem.istry, Biology; Engineering, Physics, Metallurgy, Plastics and othersciences. We translate manuscripts, articles, patents, books, catalogs anddescriptive literature. TAWSLATIox & Rxx(z BuzRAu, 7 East 42ndSt., New York, N. Y.

SUPPLIES AND EQUIPMENT

Prene, Argnno, ete.; Biocehicas. Cou, aac-

turrig chemists. Procisie analysis of biologicl mate . H. M.Ccozo Co., LzD., 144 No. Hayworth Ave., LsA 344 Caif.

BOOKS

Wsno to u a-Scientific Periodicals, sets and runs. Foreign-Domestic. Entire ibraries and smaller collections. W em J. Joxas ,125 East 23rd Street, New York 10.

Jourls, Peodicals, sets and runs. Also whole collections purchased forcash. J. S. CAmN & CoMERw , 909 Boylaten Street, Boston IS,Massachusetts.

19

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Page 12: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

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Page 13: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

I

...a Kodak color film you can process yourself

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Page 14: Researchers! Chemists! I OF · Researchers! Chemists! Manufacturers! ProductionMen! Teachers! Engineers! I ENCYCLOPEDIA OF SUBSTITUTES AND SYNTHETICS EDITED BY-MORRIS D. SCHOENGOLDWITHTHE

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