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4 SCIENCE -ADVERTISEMENTS VOL. 91, No. 2360

IA .du . >40 SOIEN E ADYERTISEMENTS 5

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6 'SCIE4~NCE-ADVERTISEMENTS~'~NT VOL. 91, No. 2360

SCIENCEVOL. 91 FRIDAY, MARCH 22, 1940 No. 2360

The Currents of the Pacific Ocean and Their Bearing Special Articles:on the Climates of the Coasts: DR. H. U. SVERDRUP 273 Reversible Inhibition of Tobacco Mosaic Virus in

Obituary: Living Cells: PROFESSOR MARK W. WOODS. Fur-Edwin Morrison: DR. C. W. CHAPMAN and PRO- ther Note on the Existence of a Respiratory Neuro-FESSOR O. L. SNOW. Wilfred August Welter: hormone: PROFESSOR THEODORE KOPPANYI andCORRESPONDENT. Recent Deaths ............................................. 282 PROFESSOR CHARLES R. LINEGAR. Sarcomata and

Scientific Events: Carcinomata Induced in Cottontail Rabbits byThe Inventions Board of the Canadian Govern- Methylcholanthrene: DR. JEROME T. SYVERTON andment; Expedition to the Caribbean; Timepieces DR. GEORGE PACKER BERRY. Sex Differences in theof the James Arthur Collection at New York Uni- Structure of Bowman's Capsule in the Mouse:

versity; The Gray Herbarium of Harvard Univer-CHARLOTTE CRABTREE .............................................................................. 295

sity; The Associated Hospital Service of New Scientific Apparatus and Laboratory Methods:York City; Theft of Research Microscopes from Hay Ventilation: MAYNARD S. GRUNDER. Organicthe Biological Laboratory of Amherst College; Mercury Derivatives of Basic TriphenylmethaneOfficers of the Federation of American Societies Dyes: DR. LYMAN CHALKLEY...................................................... 299

for E xperim ental Biology................. ....................... ........... 283 Science ...................................................................................................... 8

Scientific Notes and News .................................................................. 286Discussion:Changes in Modern Mathematics: PROFESSOR G. A. SCIENCE: A Weekly Journal devoted to the Advance-MILLER. The Chestnut Blight and its Relation to ment of Science, edited by J. MCKEEN CATTELL and pub-the Principle of Disease Resistance: DR. ARTHUR lished every Friday byPIERSON KELLEY. The "Baboon Boy" of South THE IENCE PRESSAfrica: PROFESSOR JOHN P. FOLEY, JR. A Cor-'rection: PROFESSOR DOUGLAS JOHNSON. Unusal New York City: Grand Central TerminalEaster Dates: DR. ALEXANDER POGO .................................... 289 Lancaster, Pa. Garrison, N. Y.

Scientific Books:Land Mollusca of North America: Dn. PAUL Annual Subscription, $6.00 Single Copies, 15 Cts.BARTSCH. Biological Oxidation: DR. L. MICHAELIS 292 SCIENCE is the official organ of the American Associa-

Reports: tion for the Advancement of Science. Information regard-Radioactive Standards: PROFESSOR ROBLEY D. ing membership in the Association may be secured fromthe office of the permanent secretary in the Smithsonian

EVANS andOTHERS .............................................................................. Institution Building,Washington,D.C.

THE CURRENTS OF THE PACIFIC OCEAN AND THEIRBEARING ON THE CLIMATES OF THE COASTS1

By Dr. H. U. SVERDRUPSCRIPPS INSTITUTION OF OCEANOGRAPHY, UNIVERSITY OF CALIFORNIA

I FEEL greatly honored by addressing you here onthis island which was made and made beautifully byman, the shores of which are washed by the waters ofthe Pacific Ocean, and which now during this greatexposition offers a marvelous display of arts, craftsand industries from the many countries around thatbig ocean.

I stand here, however, with mixed feelings, partlybecause my personal experiences of the Pacific Oceanare limited and of recent years, and partly because Ialways feel that it is a shame to reduce winds andwaves, the ever shifting sky of the sea, and the vastexpanse of the ocean to a series of graphs in black

Address given at the Pacific Science Congress, July27, 1939. Contributions from the Scripps Institution ofOceanography, New Series, No. 84.

and white such as those which I shall use to illustratepart of my address to-day. However, I can not bringto you the fogs of the Bering Sea, the blue waves of thetrade-wind belts or the icebergs of the Antarctic. Ihave to present my subject in a cut-and-dried fashion,but I feel confident that you will not leave with theimpression that the Pacific Ocean is as undisturbed andbehaves in so law-abiding a fashion as appears frommy graphs. You are familiar with the sea and knowthat it is ever-changing and tantalizing to those whotry to understand its moods, but to-night I must gen-eralize and simplify.My address will fall into two distinct different parts.

In the first place, I wish to give a review of the cur-

rents of the Pacific Ocean and, in the second place, I