CONTENTS. 



John C. Hemmeter (By invitation) : Reply to recent criticism of Dr. Hem- 

 meter's e.^perimental study of effects of extirpation of the salivary glands 

 on the gastric secretion. 15 (353). 



G. H. A. Clowes : A critical study of the conditions under which zymase 

 and its associated co-enzyme bring about alcoholic fermentation. 16 

 (354). 



Alexis Carrel : Presentation of a dog ten months after double nephrec- 

 tomy and replantation of one kidney. 17 (355). 



Don R. Joseph and S. J. Meltzer : A demonstration of the life-saving 

 action of eserin in poisoning by magnesium. 18 (356). 



A. O. Shaklee and S. J. Meltzer : The mechanical destruction of pepsin. 



19 (357). 



John Auer : A demonstration of the eftects of CO.^ upon the frog's pupil. 



20 (358). 



Richard Weil : On the specific acquired resistance of red blood cells. 21 

 (359). 



Hideyo Nogl'Chi : The butyric acid reaction for syphilis in man and in the 

 monkey, 22 (360). 



D. D. Van Slyke and P. A. Levene : The quantitative separation of leucin 

 from valin. 23 (361). 



W. A. Jacobs and P. A. Levene : Further studies on the constitution of 

 inosinic acid. 24 (362). 



Ralph S. Lillie : The significance of changes in the permeability of the 

 plasma membrane of the living cell in the processes of stimulation and 

 contraction. 25 (363). 



F. C. Becht and J. R. Greer (By invitation) : On the relative concentra- 

 tion of lysins, precipitins, agglutinins, opsonins and related substances 

 in the different body fluids of normal and immune animals. 26 (364). 



Nellis B. Foster : Studies of the influence of various dietary conditions 

 on physiological resistance. I. The influence of different proportions of 

 protein in the food on resistance to the toxicity of ricin and on recupera- 

 tion from hemorrhage. 27 (365). 



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