Science and Our Nation's Future.

Science and our Nation's Future: DL ARTHUR H. ALEXANDER and GRETA LANDWEHR. Deamination COMPTON ................... 207 of Amino Acids by the Human Oral Flora; Its Role The Concept of Integrative Levels and Biology: DR in Dental Caries Immunity: DR. ROBERT G. KESEL, ALEX B. NOVIKOFF ............. 209 JOSEPH F. 0 'DONNELL and ERNST R. KIRCH. The Obituary: Preparation of Highly Purified PR8 Influenza ViSir Arthur Eddington: PROFESSOR HENRY NoRRis rus from Infected Mouse Lungs: DR. C. A. KNIGHT 228 RUSSELL. Recent Deaths .... ............... 215 Scientific Apparatus and Laboratory Methods: Scientific Events: Sterility Test for Penicillin Employing Cysteine Archeological Work of the National Geographic for Inactivation: DR. RICHARD J. HICKEY. A Society; Biological Abstracts; The Twenty-fifth Method for the Culturing of Excised, Immature Anniversary of the American Meteorological SoCorn Embryos in Vitro: DR. A. J. HAAGEN-SMIT, ciety; Awards of the American Institute of Mining R. SIU and GERTRUDE WILSON ........ ................. 232 and Metallurgical Engineers........................................................ 216 Science News .10 Scientific Notes and News .......... ...................... 218 Discussion: SCIENCE: A Weekly Journal, since 1900 the official The Torque or Rotating Action in a Beam of Light: organ of the American Association for the Advancement PROFESSOR GORDON FERRIE HULL. Temperature of Science. Published by the American Association for Induced Sterility and Evolution: PROFESSOR RAYthe Advancement of Science every Friday at Lancaster, MOND B. COWLES. " Starring" in American Men Pennsylvania. of Science in Relation to the Status of Chemistry: PROFESSOR ROGER J. WILLIAMS. Mold Preventive CATTELL. for Book Bindings: DR. DUNCAN C. HETHERINGPoliH TON. Fanciful Portraits of Ancient MathematiPolicy Committee: MALCOLM . SOULE ROA cians: PROFESSOR G. A. MLLER.E . ........................ ...........ER ADAMS. 2 Scientific Books: Advertising Manager: THxo. J. CHRISTENSEN. Radio 's Men of Science: DRa. W. F. G. SWANN. Communications relative to articles offered for publication Electrical Communication: DR. A. E. VIvELL. Phoshould be addressed to Editors of Science, The Science Press, tomicrography: DR. W. G. KINSINGER .............................. 224 Lancaster, Pa. Reports: Communications relative to advertising should be addressed to THEo. CHRISTENSEN, Advertising Manager, Smithsonian The Research Board for National Security: DL Institution Building, Washington 25, D. C. KARL T. COMPTON ............. 226 Communications relative to membership in the Association Special Articles: and to all matters of business of the Association should be addressed to the Permanent Secretary, A.A.A.S., Smithsonian Oral Penicillin: DR. WALSH MCDERMoT and Institution Building, Washington 25, D. C. OTHERS. The Role of FecalThiamine and Cocarboxylase in Human Nutrition: DL BENJAMIN Annual subscription, $6.00 Single copies, 15 cents