CONTENTS. 



D. I. Macht and W. Bloom. A pharmacodynamic analysis of cocain action on 

 tbe cerebrum. 37 (1619). 



A. S. Warthin and A. C. Starry. Improved methods for staining spirochaeta 

 pallida in tissue. 38 (1620). 



D. T. MacDougal. The effects of yeast vitamine water-soluble B on plant cell- 

 masses and on biocolloids. 39 (1621). 



Oscar Riddle. Differential survival of male and female dove embryos in increased 

 and decreased pressures of oxygen: A test of the metabolic theory of sex. 40 



(1622) . 



Frederick L. Gates. Preparation of collodion sacs for use in bacteriology. 41 



(1623) . 



G. L. Gates and Peter K. Olitsky. Factors influencing anaerobiosis with special 



reference to the use of fresh tissue. 42 (1624). 

 J. Bronfenbrenner and M. J. Schlesinger. Generalized infection in syphilitic 



rabbits resulting from the inadequate salvarsan therapy. 43 (1625). 

 J. A. Harris and A. T. Valentine. The specific electrical conductivity of the tissue 



fluids of desert loranthaceae. 44 (1626). 

 Jacques Loeb. Chemical and molecular behavior of casein. 45 (1627). 



The Proceedings of the Society for Experimental Biology and Medicine are 

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