Professors' Salaries: Are Equitable Salaries Paid to Professors?

American Association for the Advancement of Science: Quotations: Professors' Salaries: Dr. Welch's "Apotheosis" ....... ............... 420 Are Equitable Salaries Paid to Professors?: DR. WILLIAM A. NOYES ...... .................... 397 Scientific Apparatus and Laboratory Methods: Adequate Salaries for College and University Heat Transmission through Blankets: DR. M. F. Teachers: EDWARD A. FILENE ............. ............. 401 WEINRICH ...... 421 Discussion: DR. WALTER P. TAYLOR ............................ 408 Special Articles: Obituary: The Effect of Colloidal Silica on the Absorption Becent Deaths; Memorials ...... .............. 409 of Phosphoric Acid by Plants: DR. WALTER Scientific Events: THOMAS. Segregation (?) in Phoma terrestris: Gift of Crystal to the Smithsonian Institution as DR. H. N. HANSEN ................ 422 a Memorial to Worcester Reed Warner; Fellowships in Chemistry at the Johns Hopkins UniverScience News ....x sity; Summer Meeting of the Botanical Society of America; Celebration in Honor of Dr. Welch ............ 410 Scientific Notes and News ............... ....................... 412 SCIENCE: A Weekly Journal devoted to the AdvanceDiscussion: ment of Science, edited by J. MoKraiN CATTELL and pubCosmical Matter and Stellar Evolution: DR. C. D. lished every Friday by PERRINE. Psittacosis Epidemics and Pleomorphic THE SCIENCE PRESS Protoplasm: DR. ELSIE MURRAY. Artificial BaNew York City: Grand Central Terminal cilli: PROFESSOR CHAS. B. LIPMAN. Action of Lancaster Pa. Garrison, N. Y. Bacteria and Enzymes on Carbohydrates and Their Bearing on Plant Synthesis: DR. HAROLD HiBAnnual Subscription, $6.00 Single Copies, 15 Cts. BERT . 415 SCIENCE is the official organ of the American AssociaSpecial Correspondence: tion for the Advancement of Science. Information regardThe Montana Tick Parasite Expedition to Africa: ing membership in the Association may be secured from the office of the permanent secretary, in the Smithsonian PROFESSOR R. A. COOLEY ..... .............. 419 Institution Building, Washington, D. C.