Back MatterSource: The Scientific Monthly, Vol. 58, No. 2 (Feb., 1944), pp. ix-xiiPublished by: American Association for the Advancement of ScienceStable URL: http://www.jstor.org/stable/18113 .

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THE SCIENTIFIC MONTHLY ix

"sWratften Light IFilters"

A BOOK OF TA O ATTEN FILTERS

rr ERE ARE more than 100 filters in the series of Wratten

light filters. They are designed for use in general mono- chrome and color still photography, cinematography, and special scientific fields-including astronomy, photome- try, spectroscopy, photomicrography.

Eachi Wratten Filter is made to meet a rigid standard, and is supplied in the form most convenient for its appli- cation. The purpose of the book, Wratten Light Filters, is to facilitate selection of filters by providling complete spectrophotometric data concerning them.

The 88-page Sixteenth Edition of this publication gives transmission curves and tables for all filters, as well as ntotes on the use of filters for special purposes. It is avail- able at dealers in photographic supplies.

EASTMAN KODAK COMPANY Research Laboratories Itochester, N. V.

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X THE SCIENTIFIC MONTHLY

THE SMITHSONIAN INSTITUTION Wtashington, D. C.

THE SMITHSONIAN INSTITUTION arose from James Smithson's states- manlike bequest "for the increase and diffusion of knowledge among

men." Thefoundationoriginallywas $550,000. It isnowabout $2,500,- 000. The art galleries of Freer and Mellon, the art gifts of Kress, Gellatly, Evans, Johnson, and others, the gem and mineral collections of Lea, Roeb- ling, and Canfield are also legally the private property of the Institution, together with specimens in the National Museum valued at millions of dollars. The Institution developed privately the National Museum, the National Zoological Park, and four other bureaus which, becoming of national importance, are now supported mainly by Government appropri- ations. They remain, however, under the administration of the Smith- sonian Institution, whose reputation for honesty, efficiency, and frugality in administering Government funds is recognized.

Wide free distribution of its own publications, linked with the inter- national exchanges of scientific literature, has built up the great scientific library, largely contained in the Smithsonian Deposit in the Library of Congress. Hardly a textbook or reference book exists which does not draw upon Smithsonian publications. Nearly 50,000 sets of the privately pub- lished 12-volume Smithsonian Scientific Series have yielded over $300,000 in royalties to Smithsonian resources. The Smithsonian Reports and other series of publications, its International Exchange Service, and a world- wide correspondence are useful means for -diffusion of knowledge."

The radiation programs of the Astrophysical Observatory and the Di- vision of Radiation and Organisms and the archeological and ethnological researches of the Bureau of American Ethnology are well known. Alone or cooperatively, the Institution takes part in twenty-five or more explor- ing and collecting expeditions each year. As the national repository of specimens of fauna, flora, mineralogy, geology, anthropology and arche- ology, the Museum is a center of research.

In wartime the Institution serves as an important source of technical information for the Army, Navy, and war agencies. More than 1,500 requests for such information have been recorded since Pearl Harbor.

The Smithsonian Institution is the ward of our Government, under an eminent Board of Regents. Its executive officer is the Secretary. The Regents and Secretary are so well advised by able investment counsel that the various endowment funds have been increased materially.

The attention of donors is invited to this nationzal yet private institu- tion, safe, successful and perpetual, as a worthy recipient of gifts and bequests "f or the increase and diffusion of knowledge."'

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THE SCIENTIFIC MONTHLY xi

When the 1i-hts ~o on agaIn i IthTen the lwhts tio on atain in GriLyoriopol

Three short years ago Grigoriopol was a thriving city of the Russian Ukraine. Today it is a scene of desolation ... victim of ravaging Hitlerite hordes.

But some day-soon we hope-lights will go on again in Grigoriopol, and in other Allied cities now under the Nazi heel.

When that tiTne comes ... thanks to a new idea iiT modern warfare . . . emergency electric power will be available to revitalize industries in war tornr cities-immediately after they are retaken from the enerny.

This new idea--a self-contained POWER-TRAIN- has now been made a reality by the engineering brains and skill of Westinghouse.

Ten of these POWER-TRAINS are now being built by Westinghouse for use by the United Nations . . . each a complete 5000 kw power house on wheels, big enough to serve a community of 15,000.

Each POWER-TRAIN consists of 8 cars. Ingeniously assemh1ed in these cars are: a MO k" w ste am

turbo-generator, boilers, power stokers, boiler feed pumps, air-cooled condensers, auxiliary Diesel engine, living quarters for the crew-even con- veyer e(quipment for handling coal which will be mined locally for fuel.

Because cooling water is not always available, air-cooled condensers are used to recover, as water, a high percentage of the exhaust steam from the turbine.

From switchgear to turbo-generator, each POWER-TRAIN is a complete 5000 kw mobile power house, ready to go to work at a few hours' notice

in sub-zero cold or tropical heat of the desert. And remember--the same Westinghouse engi-

neering brains and skill that developed the POWER- TRAIN will be avai:lable, after Victory, to create and build better products for you.

Westinghouse Electric & Manufacturing Com- pany, Pittsburgh, Pennsylvan-ia.

Tune in John Charles Thomas, NBC. Sundays. 2:30 h.m,.. E.W.T

Wehs n ouse Plantsin 25 Cities Offices Everywhere

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-r x rT -FT v" C 1-Y T 7,7 -AT rrl T T77 7- 1- 71, /- 7AT7T -T r 'X1J

Just Published SURFACE CHEMISTRY

160 quarto pages (7 x 1O0'2 inches), illustrated, references, $3.25

Surface Chemistry is based on a symposium that was held at the University of Chicago in September, 1941, in connection with the celebration of the fiftieth anniversary of the University. The symposium was organized and presented in commemoration of the twenty-fifth anniversary of the publication of the first contribution by Dr. William D. Harkins in this field. The subject is one of the newer branches of chemical science, its beginning dating back less than 40 years. The basic subject matter of this volume, however, is inot only of deep theoretical iinterest but also of great practical importance.

Publication Committee: HERMANN 1. SCHLESINGER, Chairmtan; JOHN G. KIRKWOOD, and THOMAS F. YOUNG. Edited by F. R. MOULTON.

TABLE OF CONTENTS A Contribution to the Surface Tension of Or- Interactions of Biologically Significant Subs ganic Compounds in Relation to Their Polarity.

stances in Surface Films, with Especial Reference Te A HAUSER and A. J. GROSSMAN. to Two-Dimensional Solutions and Association The Problem of the Elasticity of Rubber and Complexes Formed by Carcinogenic Hydrocarbons Rubberlike AMaterials. EUGENE GUTH. and Sterols. G. H. A. CLOWES. Some Aspects of the Properties of Solid Sur-

Rates of Efvaporation of Water Through Com- faces. G. E. BOYD. pressed Monolayers on Water. IRVING LANGAIUIR Intermolecular Attraction Between Macromole- and VINCENT J. SCHAEF'ER. cules. F. LONDON.

Intermolecular Forces and Two-Dimensional The Intrinsic Viscosities and Diffusion Con- Systems. WILLIAM D. HARKINS. stants of Protein AMolecules. HENRY B. BULL

Some Thermodynamic Properties and Rate and JOHN A. COOPER. Processes at Surfaces. HENRY EYRING, JOHN . Phase Transitions in AMonolayers Due to Hin- WALTER and ALLEN El. STEARN. dered Molecular Rotation. JOHN G. KIRKWOOD.

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New B lakiston Book s

CUMMINS and MIDLO Finger Prints, Palms and Soles

This new book fills the need for a comprehensive treatise on modern der- matoglyphics in which the latest knowledge and progress is recorded. The authors show many new applications in practical science work of the material presented including valuable data on a much neglected phase of human biology. The book is of interest to anatomists, physical anthro- pologists, geneticists and zoologists as well as to those dealing with identi- fication studies alone. By Harold Cummins, Ph.D., and Charles Midlo, M.D., Tulane University Medical School. 149 Illus. 309 Pages. $4.00 (1943)

SHAPLEY Galaxies (The Harvard Books on Astronomy)

This book is based on extensive original research concerning stars, star clustlers and those distant external systems that resemble our own Milky Way Galaxy. The book discusses the Clouds of Magellan-the toolhouse of the astronomy of galaxies. A chapter concerns the local family of galaxies, another, the Expanding Universe. Questions such as the finite- ness of the universe, the time interval since the great expansion began, the total amount of material in stars, galaxies and interstellar space, etc., are considered. The illustrations are abundant and outstanding in in- terest. By Harlow Shapley, Ph.D., Harvard College Observatory. 126 Illus. 229 Pages. $2.50 (1943)

BREMER-WEATHERFORD Text6ook of Histology

(6th Edition of Lewis and St'ohr)

To enihance the teaching value of this famous text, important changes have been made in every section. 598 carefully selected illustrations elucidate the discussions. 302 of these figures are entirely new, many having been made from especially prepared specimens. A large number of the illus- trations are in colors. The embryological approach has been used with a study of function where it aids in the understanding of structure. The historical introduction and development of the microscope is new. A special section on the Shapes of Cells by Dr. F. T. Lewis and a section on Placentation by Dr. G. B. Wislocki have been included. By J. Lewis Bremer, M.D., Harvard University, rewritten by Harold L. Weatherford, Ph.D., Harvard University. 598 Illus. 723 Pages. $7.00 (1944)

THE BLAKISTON COMPANY Philadelphia 5,Pa.

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FAR ON THE RINGING ROAD TO TUNIS PLAINS By DAVID RAME

By GEORGE RODGER TIhis, as only the intrepid David Rame can tell it, is the tale of what American troops experienced from A brilliant photographer for Life and Tjmne maga- start to finish of the Tunisian campaign. From the

zines tells of his thrilling 75,000-mile Journey pur- disembarkation of the first Americans on the beach suing history throughout war-racked Africa and at Arzeu, David Rame was in the fore of the fight- Asia. ing. He maneuvered himself into the capitulation

Geographically there is a cosmic sweep to the discussion at Oran's Chateau Neuf, broke away with story: Iceland, North Africa, Eritrea, Syria, Pales- a tank destroying unit across inland Africa, went tine, Transjordania, India, Egypt, Burma, China. into action with the Germans the day he reached Everywhere Mr. Rodger took pictures and observed Algeria, was at the taking of Medjez el Bab, at- native life and military activity with a trained tended the battle for Tebourba in a forward artillery photographer's eye for telling detail. A few of observation post, and was involved in thrilling last- the many scenes which stand out include: a 34-day minute tank work. drive across Africa with his guide, the tempera- mental "Baron"; fighting in Ethiopia; a taxi trip The book gives a clear view of the campaign, but from Baghdad to Teheran, and the meeting of also comes to life in its pictures of the people with British and Russian columns; the Indian tribesmen whom David Rame worked (mainly the 701st Tank who called off their war to let Rodger make a tour; Destroyers and Combat Command "B"), showing interviewing the Flying Tigers; inspecting the the American soldier as he is. Burma railroad being built to Kunming; getting $2.50 arrested on the Burma Road; action in Rangoon; flights from burning villages; talking with Alex- ander, Stilwell, and Chinese commanders; escape to India in a jeep and on foot through jungles. Each THE OUTDOORSMAN'S scene is brought before our eyes in magnificent COOKBOOK photographs, the finest ever taken during the prog- COOKBOOK ress of a war.

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