MAY 11, 1945 SCIENCE-ADVERTISEMENTS

INTRODUCTION TOPARASITOLOGY

Seventh Edition (1944)By ASA C. CHANDLER, Professor of Biology, The Rice Institute

1 Since publication of the seventh edition of Chandler's "Introduction toParasitology," 43 schools have adopted this textbook for the spring courseof 1945. This is not, of course, an exceptional record for "Chandler," butin view of the discontinuance of many courses in the subject for the dura-tion, it is nevertheless a substantial one. Frequent revisions have keptthis book constantly up to date, and additions and improvements have in-creased the value of Dr. Chandler's book as a teaching aid. A few typicalcomments from users of this book will indicate some of the characteristicsthat particularly appeal to teachers:

"I have always felt that Chandler's book was "This book is the only good introduction to hu-one of the very best of the textbooks in parasitol- man parasitology and has been the only one in

previous editions. The author has rightly under-ogy. It is especially suited for beginning stu- stood the point of view of college students indents since he has an aptitude for making com- their desire to have clear, relatively simple and

accurate information in this important field. Theplicated things simple but still accurate." seventh edition is no exception to this general

Professor W. W. Cort understanding."1Professor Ernest Carroll FaustJohns Hopkins University Tulane University

"This has long been a standard textbook and the "Experience has led to the conclusion that Chan-new edition will be welcomed by all of us. It dler's book is still the leading choice for under-should play a very useful part in developing the graduates and is thoroughly suitable for graduateincreased interest in Parasitology. Dr. Chandler work as well. I am adopting it as the text forhas incorporated in this edition practically all the worse ispr ing it asthe texturnew information that has appeared since the pre-vious edition, and he is to be congratulated on of Chandler's book include a solid biological out-the thoroughness and soundness with which he look . . . constant reference to recent literature,has selected from the great mass of material that and a readable quality that is unique amonghas appeared." parasitology texts. "

Professor Robert Mathpson Professor Ralph W. MacyCornell University Reed College

December 1944 716 pages 558 by 85/8 $5.00

JOHN WILEY & SONS, Inc., 440-4th Ave., New York 16, N. Y.

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ALUMINUMRECOVERING valuable aluminum for re-use from crushed

war-weary, crashed or obsolete planes has been speededup by a new process that literally dissolves the aluminumfrom whole sections of these planes. This new method,developed by the Aluminum Company of America in co-

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bath of caustic soda. This caustic soda dissolves thealuminum in the planes, while any steel nuts and bolts,rivets, copper piping, bronze bushings, rubber or othernon-aluminum parts are not attacked by the caustic andremain in solid form. Aluminum alloying elements are

not attacked by the caustic, and as is the case with othernon-aluminum parts they can be removed readily fromthe sludge. Thus scrapped planes are taken apart quicklyby chemicals, instead of by tedious hand labor.

After filtering out the solid impurities from the sludge,the aluminum-bearing liquor is transformed into pure

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plished by pumping the liquor into precipitating towersas high as six-story buildings and allowing it to standand cool. In time, crystals of aluminum hydroxide beginto settle out. These crystals are removed and washedto free them of caustic soda. Then they are heated whitehot in large rotating kilns to drive off any moisture andleave commercially pure aluminum oxide or alumina. Thecaustic soda recovered can be re-used.The aluminum oxide can be processed into any desired

form by standard methods, about which there is nothingnew. Other parts, such as rivets, rubber and so on, can

also be salvaged.The chemical stripping of aluminum from wrecked

planes makes possible the conservation of the country'shigh-grade bauxite reserves and man-hours required tomine bauxite. If this process had been available at the

time of the serap aluminum drive in 1942, when house-

wives turned in to the government their aluminum pots,pans and skillets, those cooking utensils could have been

processed and used in aircraft construction. As it was,they were of little value, since the large number of dif-

ferent mixtures and alloys of aluminum used in cookingutensils made it impossible to identify and sort the vast

quantity turned in. Most of this material was melted

down into low-grade metal.-ROBERT N. FARR.

ITEMSTHE effects of changes in population, including war

casualties, on the make-up of groups seeking employmentis being studied at the Seripps Foundation for Research

in Population, Miami University, under a grant from the

VOL. 101, No. 2628

Rockefeller Foundation. The total population of theUnited States would increase by about 25,000,000 between1940 and 1970, the Scripps scientists have estimated.This estimate was worked out on the assumption ofmedium fertility, medium mortality, no immigration andno war losses. By 1970 the population of the SovietUnion would increase by about 77,000,000 over that of1940, according to an estimate quoted on the review ofthe work of the foundation by Dr. Raymond B. Fosdick,president of the foundation. During the same periodFrance and England would each show a decrease of about4,000,000. These estimates also are based on the assump-

tion of an orderly development of past population changesand do not allow for war losses or boundary changes.Facts to show the meaning of these and other changes inpopulation, in terms of international trade, migration andagreements and also in terms of standards of living andcultural advancement or degradation within a country,are being sought in Rockefeller-supported studies at theScripps Foundation and at the Office of Population Re-search at Princeton University.

A NEW, but important, instrument has been added to

the already confusingly crowded instrument panels ofmulti-engine aircraft. Known as the engine performancecalculator, it merits its position because it can show thepilot or flight engineer by a glance at a plastic dial howany engine is performing. It eliminates complicatedmathematical computations which, if not accurate, mightresult in the plane 's failing to reach its destination, sincethe distance a multi-engine plane can fly depends largelyupon the efficient operation of its engines. Developed by H.B. Riggs, a flight engineer with Consolidated Vultee Air-craft Corporation, the calculator is set in accordance withengine speed and manifold pressure instrument indica-tions. From this is computed such important informa-tion as fuel consumption, horsepower and cylinder pres-

sure. The idea for the calculator came to Mr. Riggswhile he was trying to keep a malfunctioning patrolbomber engine in operation during a long flight over thePacific.

THREE new standard samples of hydrocarbons are now

available from the National Bureau of Standards, bring-ing the total number to forty-six of these national stand-ards of particular value in rubber, petroleum and chem-ical industries. They have been prepared and certifiedfor use in calibrating spectrometers and other analyticalinstruments atd apparatus used in the laboratories ofthese industries. The first of these standard samples were

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tablishing heating values of gasoline and other volatileliquid fuels.

SCIENCE-SUPPLEMENT

SCIENCE NEWSScience Sence, Washington, D. C.

MAY 11, 1945 SCIENCE-ADVERTISEMENTS 13

ADVANCES IN BIOCHEMISTRY AND GENETICSSection A

ADVANCES IN GENETICSEdited by M. DEMEREC. Editorial Board: G. W. BEAIwE, WILAM C. BoYD, TH. DOB-ZHANSKY, L. C. DuNN, MERLE T. JENKINS, JAY L. LUSH, AWmED MIRSKY, H. J. MuuE,J. T. PATTERSON, M. M. RHOADES, L. J. STADLEB, CURT STERN

Volume I in preparation. Spring, 1946. Approx. $6.00

Section B

VITAMINS AND HORMONESAdvances in Research and Applications

Edited by ROBERT S. HARRIS AND KENNETH V. THIMANN

Volume I, 1943, XVII, 452 pages. Illustrated. Reprint 1945. $6.50"No research worker who wishes to keep himself oriented in his field and no individualwho wishes to keep abreast of these specialized subjects can well be without this volume."

American Journal of Public Health.Volume II, 1944, XV, 514 pages. Illustrated. $6.80

"The eleven articles have been carefully written and the high standards set by volume Ihave been maintained." Journal American Chemical Society.

Volume III in press. August, 1945

Section C

ADVANCES IN PROTEIN CHEMISTRYEdited by M. L. ANSON AND JOHN T. EDSALL

Volume I, 1944, XV, 341 pages. Illustrated. $5.50"The high caliber of the papers in the first volume gives promise that the series will be-come a useful addition to the library of everyone interested in the nature and functionof proteins." Science.

Volume II in press. Fall, 1945. Approx. $5.50

Section D

ADVANCES IN CARBOHYDRATE CHEMISTRYEdited by W. W. PIGMAN AND M. L. WOLFROM. Executive Committee: WILLIAM L. EVANS,HERMANN 0. L. FISCHER, R. MAX GOEPP, JR., W. N. HAWORTE, C. S. HuDSON

Volume I. July, 1945. Approx. 400 pages. About $5.80Please ask for folders on these publications

ACADEMIC PRESS INC., Publishers125 East 23rd Street, New York 10, N. Y.

1

SCIENCE-ADVERTISEMENTS 13MAY 11, 1945

SCIENCE-ADVERTISEMENTS VOL. 101, No. 2628

The Babor and LelirmanBy Joseph A. Babor, Ph.D., and Alexander Liehrman, Ph.D.,

Associate Professors of Chemistry, College of the City of New York.INTRODUCTORY COLLEGE CHEMISTRY. 1941. 662 pages. 138 figures. $3.50.

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MAY 11, 1945 SCIENCE-ADVERTISEMENTS

College ChemistriesLABORATORY MANUAL FOR INTRODUCTORY COLLEGE CHEMISTRY. 1941.

284 pages+ appendix and graph paper. 56 figures. $1.75. A combined laboratorymanual and notebook of 76 experiments prepared primarily for students who have hadhigh school chemistry.

SELECTED EXPERIMENTS FROM LABORATORY MANUAL FOR INTRODUC-TORY COLLEGE CHEMISTRY. 1944. 128 pages including appendix and graphpaper. $1.00. A combined laboratory manual and note book of 102 experiments per-mitting a wide variety of selection.

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16 SCIENCE-ADVERTISEMENTS2625

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inJUNE

PRINCIPLES oEMODERN BIOLOGY

by DOUGLAS MARSLANDNew York University

Based on Elements of Modern Biologyby CHARLES R. PLUNKETT

In this modernized version of a highly-regarded text, ProfessorMarsland has kept constantly in mind the experience and interestsof beginning biology students. Topics have been reorganized andrewritten to allow early application of important principles to liv-ing organisms generally. Man's own background and problems arestressed throughout. The simplified style, numerous specific ex-periments and examples, and additional illustrations will heightenstudent interest and be of immeasurable assistance to the teacher.

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MAY 11, 1945 SCIENCE-ADVERTISEMENTS 17

7tea REINHOLD 'oo4

EBULLIOMETRIC MEASUREMENTSBy W. Swietoslawski

Mellon Institute, Pittsburgh, Pennsylvania

This notable treatise by the leading authority on the subject presents new techniques for thephysicochemical examination of pure liquids and their mixtures. The procedures set forthare based on precise simultaneous measurements of the boiling and condensation temperatures

of liquids, and different applications in physics, physical chemistry, organic and analyticalchemistry are described. A chapter is also devoted to critical phenomena. The use of themethod of comparative measurements has increased considerably the accuracy of measurements

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225 Pages Illustrated $4.00

THE CHEMISTRY OF ACETYLENEBy Julius A. Nieuwland

Late Professor of Organic Chemistry, University of Notre Dame

and Richard R. VogtProfessor of Chemistry, University of NQtre Dame

This volume, many years in preparation, surveys thoroughly and systematically the entire litera-ture relating to acetylene compounds. It carries on the unfinished work of the late FatherNieuwland, so vitally important to the early development of synthetic rubber in the UnitedStates. The book features valuable detailed discussions of: The Physical Properties, Preparationand Purification of Acetylene; Metallo-Derivatives of Acetylene; Substitution of Non-MetalAtoms or Radicals for the Hydrogen of Acetylene, Addition of Non-Metallic Elements andCompounds to Acetylene; Polymerization of Acetylene and its Condensation with Carbon Com-pounds. Includes complete information on the chemistry, properties, and uses of Neoprene.

216 Pages A.C.S. Monograph No. 99 Illustrated $4.00

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MAY llp 1945 SCIENCE-ADVERTISEMENTS 17

18 SCIENCE-ADVERTISEMENTS VOL. 101, No. 2628~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Two books onAMJeteorologyBy

IVAN RAY 11

TANNEHILL 5Chief of the Divisionx ' Fof Synoptic Reports, \i\I/U. S. Weather Bureau '(- A

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18 SCIENCE-ADVERTISEMENTS VOL. 101, No. 2628

IN T EHE MA R K E T P L A C ERates to be paid in advance: 10 cents a word, minimum $2.00; no discounts or agency commissions. Count eight words if abox address is to be used. Copy should be sent to the Advertising Department, American Association for the Advancement ofScience, Smithsonian Institution Building, Washington 25, D. C.

POSITIONS OPEN

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SUPPTLIS AND INSTRUlNTS

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POSITIONS WANTEDWoman Zoologist, 30, Ph.D. Five years successfulteaching of college zoology and entomology. Re-search and publications on arthropod ecology;membership in scientific organizations. Prefersposition with more opportunity for research. Box148, "SCIENCE," Smithsonian Institution Building,Washington 25, D. C.Assistant Professor, Ph.D., desires academic orindustrial position; Biochemistry, PhysiologicalChemistry or Nutrition. Experienced in adminis-tration, teaching and research. Publications, hon-orary and professional societies. Age 31, married,Draft 2-A, Protestant. Excellent references fromleading eastern universities. Permanent positionconsidered. Available June or September. Box145, "SCIENCE," Smithsonian Institution Building,Washington 25, D. C.Young Bacteriologist desires permanent position.Industry or public health. Preferably South Ad-dress. Box 155, "SCIENCE," Smithsonian Insti-tution Building, Washington 25, D. C.Biochemist, recent Ph.D., 4-F, research on bacterialenzymes, teaching experience. Desires positionwith minimum of half-time for research and salaryadequate for support of family. Box 154, "Sci-ENCE," Smithsonian Institution Building, Wash-ington 25, D. C.This biologist, now well paid and treated, never-theless might be more useful in an even largerschool. He has made an intensive and very suc-cessful study of methods of handling extra largeclasses of students whose major interests are di-versified. He has exceptional skill in helping themlearn the broad, general principles of biology, withextremely practical application to human affairs,including their own problems and lives. Manythus obtain a lasting interest that leads them toexplore further in biological sciences. He man-ages, in spite of class size numbering in the hun.dreds, to see to it that the individual is not toobadly lost in the crowd, but conscious of personal,expert attention.

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INSTRUMENTS FOR SALEFor Sale: 1 Leitz Used Large PhotomicrographicApparatus Model "UMA, " complete with arclamp,with 40" bellows extension, accessories for photog-raphy of general features, without microscope, ingood working order. Box 141, ". SCIENCE, " Smith-sonian Institution Building, Washington 25, D. C.

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MWAY 11, 1945 SCIENCE-ADVERTISEMENTS 21

VOL. 101, No. 262822 SCIENCE-ADVERTISEMENTS

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