The Advancement of Learning in the United States in the Post-war World.

The Advancement of Learning in the United States Grapefruit: DR. WINSTON W. JONES and OTHERS. in the Post-War World: DR. JAMES B. CONANT ...... 87 Thiourea and Resistance to Low Atmospheric Pressures: DR. ALBERT S. GORDON, DR. E. D. GOLDSMITH Obituary: and PROFESSOR HARRY A. CHARIPPER .............................. 103 Recent Deaths ........... 94 Scientific Apparatus and Laboratory Methods: Scientific Events: A New Method for Preservation of Human and The Delhi Meeting of the Royal Society; The NaAnimal Tissues by the Use of a Transparent tional Research Council of Canada; Fungus InPlastic: DR. MAX M. STRUMIA and DR. J. IVAN fections; The Stevens Research Foundation; The HERSHEY ........................................... 105 Washington Academy of Sciences; The Botanical Society of America ............94 Science News .10