The Importance of Ecology in Relation to Disease.

The American Association for the Advancement of Societies and Meetings: Science: The Seventh American Scientific Congress: PRESIThe Importance of Ecology in Relation to Disease: DENT CLOYD H. MARVIN ..........................329 PROFESSOR RICHARD P. STRONG .................307 Special Articles: Obituary: Experimental Dissociation of the Effects of AnCharles Elwood Mendenhall: PRESIDENT KARL T. terior Pituitary Glands of Various Species on COMPTON. John S. Carroll: R. H. S. John IgnaThyroid and Ovary: DR. LEO LOEB and OTHERS. tius Fanz: W. N. P. Recent Deaths ............ 317 Travertine Depositing Waters near Lexington, Virginia: PROFESSOR EDWARD STEIDTMANN ........... 331 Sciei Et Scientific Apparatus and Laboratory Methods: Radium at the Westmuinster Hospital, London; A Zipper Tube for Holding Small Live Animals: Migratory Waterfowl Refuges; The Curriculo m in DR. ALBERT R. SHADLE and IRENE SKARUPINSKI. Public Health at the George Washington UniverA Method for Imbedding Plant Tissues without sity; The Au.tumn MLeeting of the National A2cadDehydration: DR. J. DUFRENoY. Automatic Flowemy of Siences. .....................320 meter for Drip Solutions in Plant Nutritional Scientific Notes and News ................................ 322 Studies: ROBERT E. WEAN . .................................. 335 Discussion: Science News ...................................10 Conservation of the Prehistoric Renains of Nebraska; DE A. L. LUGN. "Yellow Water" in La SCIENCE: A Weekly Journal devoted to the AdvaneJolla Bay in 1935: PROEiSSOR W. E. ALLEN. ment of Science, edited by J. MCKEEN CATTELL and pub Growth Promoting Effect of Flavine on the Chick: lished every Friday by DR. SAmUEL LEPKOVSKY and DR. THOMAS H. THE SCIENCE PRESS JuKEs. A New Variety of Black Locust: B. Y. New York City: Grand Central Terminal MORRISON. Effect of Radium Bays on Living Lancaster, Pa. Garrison, N. Y. Cells: DR. C. STUART GAGER. German Books and Annual Subscription, $6.00 Single Copies, 15 Cts. Periodicals: CHARLES H. BROWN ............... ... 325 SCIENCE is the official organ of the American AssociaScientific Books: tion for the Advancement of Science. Information regardOur Remote Intellectual Ancestry: DR. JOSEPH ing membership in the Association may be secured from Our einte e u ncetry E the office of the permanent secretary, in the Smithsonian JASTROW .......................................... 327 Institution Building, Washington, D.