CONTENTS 



D. T. MacDougal: The distentive agencies in the growth of the cell. 52 (1799). 

 Nicholas Kopeloff: The bacterial content of the stomach as influenced by saliva. 53 (1800). 



O. T. Avery and Hugh J. Morgan: The effect of the accessory substances of plant tissue upon growth of bacteria. 

 54 (1801). 



Harold A. Abramson and Samuel H. Gray (by invitation): The diffusion of sodium chloride through a " lecithin "- 



collodion membrane. 55 (1802). 

 Lionel S. Auster and Burrill B. Crohn: Notes on studies in the physiology of the gall bladder. 56 (1803). 

 Alfred F. Hess and Lester J. Unger: The destruction of the antiscorbutic vitamin in milk by the catalytic action of 



minute amounts of copper. 57 (1804). 



E. A. Park, G. F. Powers, P. G. Shipley, E. V. McCollum and Nina Simmonds: The prevention of rickets in the 



rat by means of radiation with the mercury vapor quartz lamp. 58 (1805). 

 Frederick L. Gates: Collodion sacs for aerobic and anaerobic bacterial cultivation. 59 (1806). 



E. V. McCollum, Nina Simmonds, P. G. Shipley and E. A. Park: A delicate biological test for calcium depositing 

 substances. 60 (1807). 



Fred T. Rogers (by invitation) : The effects of pituitary extract on the body temperature of animals rendered poikilo- 



thermous by destruction of the optic thalamus. 61 (1808). 

 Arthur H. Smith and Leah Ascham: Relation of splenectomy to growth and appetite in the rat. 62 (1809). 

 R. L. Kahn and S. R. Johnson: Determination of optimum amount of antigen in complement fixation tests. 63 (1810). 

 Arno B. Luckhardt and Philip J. Rosenbloom: The prevention and control of parathyroid tetany. 64 (1811). 

 Carl Vernon YVeller: Testicular changes in acute alcoholism in man and their relationship to blastophthoria. 



65 (1812). 



Arthur T. Henrici: A statistical study of the form and growth of a spore-bearing bacillus. 66 (1813). 



Richard E. Scammon: On the weight increments of premature infants as compared with those of fetuses of the same 



gestation age and those of full-term children. 67 (1814). 

 E. D. Brown: An undetermined principle obtained from poison ivy. 68 (1815). 

 Leroy S. Palmer: The effect of heat on the calcium salts and rennet. 69 (1816). 



George Edmeston Fahr: The velocity of development of the demarcation current in the frog's sartorius. 70 (1817). 

 Arthur D. Hirschfelder and Herman H. Jensen: The pharmacological action of some ethers and esters of saligenin. 

 71 (1818). 



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President — George B. Wallace. University and Bellevue Hospital Medical College. 

 Vice-President — J. W. Jobling, Columbia University. 



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 University and Bellevue Hospital Medical College, and ex-Presidents. 



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