The Essential Need of Fundamental Research for Social Progress.

The Essential Need of Fundamental Research for monal Influence: FERN W. SMITH. Quinine Action Social Progress: DR. ALAN GREW .......................... 257 in Bacterial Growth and Disinfection: Da. FRANK The Status and Problems of Research in the Native H. JOHNSON and Da. ISAAC LEWIN. Corn as an Languages of South America: DR. J. ALDEN MASON 259 Etiological Factor in the Production of a Nicotinic Obituary: lAcid Deficiency in the Rat: DR. W. A. KREHL, DR. Oscar Floyd Poindexter: HELEN M. MARTIN. L. J. TEPLY and DR. C. A. ELVEHJEM .............................. 276 Deaths and Memorials ................ 264 Scientific Apparatus and Laboratory Methods: Scientific Events: Methods for Determining Refractive Indices in Endowment of the School of Chemical Engineering Polarised Light Microscopy: DR. PHILIP W. WEST. at the University of Cambridge; The John Wesley Arrangement for Drying Proteins from the Frozen Hyatt Award; The Fourth Annual Science Talent State: DR. WALTER H. SEEGERS ............. .............. 283 Seazrch; In Honor of Professor Dugald C. Jackson 266 Scientific Notes and News.................................267 Science News.10 Discussion: Blancan as a Time Term in the Central Great Plains: PROFESSOR MAXIM K. ELiAS and OTHERS. SCIENCE: A Weekly Journal, since 1900 the official Spinach and Bone Formation: DR. ROE E. REMorgan of the American Association for the Advancement INGTON and DR. CECIL L. SMITH. Phosphorescent of Science. Published by the American Association for Texas Earthworms: DR. CYRUS N. RAY. Comparathe Advancement of Sience every Friday at Lancaster, tive University Strength in Scientists Starred in Pennsylvania. "American Men of Science," V-VII: PROFESSOR Editors: JOSEPHINE OWEN CATTELL and JAQUES STEPHEN S. VISHER. The Society for Freedom in CATTELL. Science: JOHN R. BAKER and OTHERS .............................. 270 Policy Committee: MALCOLM H. SOULE, ROGER ADAMS Scientific Books: and WALTER R. MILES. Climatology: R. G. STONE. Analytical Geometry: Advertising Manager: THEO. J. CHRISTENSEN. PonEssoR H. S. M. COXETER. Colorimetric Determination of Traces of Metals: DR. JAMES I. HoFrFCommunications relative to articles offered for publication MAN.273 should be addressed to Editors of Science, 34 Gramercy Park. New York 3, N.Y. Special Articles: Communications relative to advertising should be addressed On the Nature of Refractoriness of Certain Gramto THEO. CHRISTENSEN, Advertising Manager, Smithsonian Negative Bacilli to Penicillin: DR. GREGORY Institution Building, Washington 25, D. C. Negatie Baclli nic lin:D GEGORYCommunications relative to membership In the Association SHWARTZMAN. The Changes in Bat Kidney Coand to all matters of business of the Association should be carboxylase Associated with the Injurious Effects addressed to the Permanent Secretary, A.A.A.S., Smithsonian of dl-Serine: DR. Wm. H. FISHMAN and.WM. M. Institution Building, Washington 25, D. C. GOVIER. Castration Effects of the Inherited HorAnnual subscription, $6.00 Single copies, 15 cents