Obesity following unilateral hypothalamic lesions in rats.

J. Mayer R. J. ........................599........................ Evidence for Echolocation in the Rat: Mark R. Rosenzweig, D. A. Riley, D. Krech .... 600 Binding of Hydrocortisone-4-C14 and Progesterone-4-C14 to Serum Albumin, Demonstrated by Paper Electrophoresis: U. Westphal, H. E. Firschein, E. M. Pearce 601 Continuous Aseending Chromatography-New Technique: H. Fischbach and J. Levine ......................60......... .... . .. . 602 Detoxication of Drugs and Other Foreign Compounds by Liver Microsomes: B. B. Brodie et al. ......................... .......... 603 Dicentrics in Wheat: J. W. Morrison ............ 604 Non-Mendelian Segregation in a Single Tetrad of Saccharomyces Ascribed to Gene Conversion: C. C. Lindegren ... 605 Communications Structure of Diatretyne 2, an Antibiotic Polyacetylenic Nitrile from Clitocybe diatreta: M. Anchel .. .. 607 Association of Susceptibility to Poliomlyelitis with Eye and Hair