CONTENTS. 



R. Weil and S. Feldstein : A new method for testing the interaction of 



ferments and anti-ferments. 37 (447). 

 Isaac Levin : Resistance to the growth of cancer induced in rats by injection 



of autolyzed rat tissue. 38 (448). 

 Don R. Joseph and S. J. Meltzek : The inhibitory effect of magnesium 



upon indirect and direct irritability of frog muscle and the antagonistic 



action of sodium and calcium upon this effect. 39 (449). 

 R. Burton-Opitz : On the vaso-motor nerves of the stomach. 40 (450). 

 R. Burton-Opitz and H. F. Wolf: The change in the venous bloodflow 



on administration of amyl nitrite. 41 (451). 

 Peyton Rous : The fate of embryonic tissue implanted in the mother. 42 



(452). 



Peyton Rous : The behavior of transplanted mixtures of tumor and embryo. 

 43 (453). 



Edwin J. Banzhaf and Edna Steinhardt: Vaughan's split products and 

 unbroken proteins. A comparative study of their effects. 44 (454). 



J. P. Atkinson and C. B. Fitzpatrick : Notes on sensitization with tuber- 

 culin to tubercular rabbit-serum. 45 (455). 



Alexis Carrel : Remote results of the replantation of the kidneys. 46 

 (456). 



Alexis Carrel : Temporary diversion from the left ventricle to the de- 

 scending aorta. 47 (457). 



Alexis Carrel : Remote results of the replantation of the spleen. 48 (458). 



Richard M. Pearce and Arthur B. Eisenbrey : The mechanism of the 

 depressor action of dog's urine with some observations on the antago- 

 nistic action of adrenalin. 49 (459). 



Alfred F. Hess : On the elimination of bacteria from the blood through 

 the wall of the intestine. 50 (460). 



John F. Anderson and Joseph Goldberger : A report on the production 

 of tabardillo, or Mexican typhus fever, in monkeys. 5 1 (461). 



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