The Work of Joseph Henry in Relation to Applied Science and Engineering.

Obituary: ratus for Very Gradual Change of Fluids: PRoNathan Augustus Cobb: DR. G. STEINER ............8 FESSOR J. HENRy WALKER, J8..................17 Special Articles: Scientific Events: The North India Expedition of Yale University; Ferrous Iodide as a Substitute for Vitamin A in Unemployment among Chemists and Chemical EnRats: HAZEL C. CAMERON. Dual Endocrine Acgineers; Honorary Degrees at Harvard and Yale ......... 9 tivity of the Testes: D. Roy MCCULLAGH ........................ 18 Index to Volume LXXV .................................... i Scientific Notes and News .................................. 11 Science News .................................... 8 Discussion: The Word Algebra: PROFESSOR G. A. MILLER. SCIENCE: A Weekly Journal devoted to the AdvanceCross-inoculation Studies with Species of the ment of Science, edited by J. McKEEN CATTELL and pubGenus Rhizobium on the Roots of Florida lished every Friday by Legumes: PROFESSOR WILLIAM R. CARROLL. The THE SCIENCE PRESS Presence of a Distinct Insulin in Depancreatized New York City: Grand Central Terminal Dogs after Pancreatectomy: DR. GEO. H. TUTTLE 14 Lancaster, Pa. Garrison, N. Y.