Large Molecules in Science and Life.

S. ............. .......................................................... 299 The New Discovery of Three Skulls f Sinanthropus Pekinensis: DR. FRANZ WEIDENREICH. EXEnPineering in an KAmerican Program for Social changes between Blood Plasma and Tissue Fluid Progress. II: DR. KARL T. COMPTON . 301 in Man: DR. ANCEL KEYS. The Plant Origin of a Obituary: Vitamin D: DR. H. H. DARBY and PROFESSOR H. T. Bohumil Shimek: PROFESSOR W.F. LOEHWING. CLARKE .............................................................6................... Wesley M. Coates: F. C. W. Recent Deaths ............ 306 Scientific Apparatus and Laboratory Methods: The Use of Bromine in the Sterilization of Fruits Scientific Events: and Seeds: PROFESSOR CARL D. LA RUE. To Keep The Field Museum of Natural History; Exhibit Culture-Media from Drying Out: DR. M. C. of Scientific Photography; The Wildlife Society; TERRY. Declivity Maps: FLOYD E. MASTEN ............ 319 The Vice-president of the University of California 6 at Los Angeles............................................... 307 SceeNws