CONTENTS. 



E. E Butterfiei.d : The color index and color of the red blood corpuscles. 98 

 (794). 



S. J. MELTZER and J. AUER : Combined action of magnesium and ether ; evidence for 



a central effect of magnesium. 99 (795). 

 Peyton Rous : Note on the production of acid by tissues growing in vitro. 100 (796)- 



C. R S rocKARD : The location of the optic anlage in Amblystoma and the interpreta- 



tion of certain eye defects. 101 (797)- 



D. Wright Wilson : The occurrence of betaine in the muscles of invertebrates. 102 



(798). 



E. C. Kendall : The chemical constituents of the thyroid gland. 103 (799). 



E. C. KENDALL : The specific physiological activity of certain constituents of the thy- 

 roid gland. 104 (800). 



M. S. Fine and V. C. Myers : Further studies on muscle creatine. 105 (801). 



J. H. Austin and C. B. Farr : The total non-protein nitrogen of the blood in nephri- 

 tis and allied conditions. 106 (802). 



W. Salant and C. S. Smith : The toxicity of sodium tartrate with special reference 

 to diet and tolerance. 107 (803). 



J. R. Murlin and B. Kramer : The influence of pancreatic and duodenal extracts on 

 the glycosuria and the respiratory metabolism of depancreatized dogs. 108 

 (804). 



J. R. Murlin, L. Edelmann and C. W. Giles : The carbon dioxide and oxygen 

 content of the blood after ligation of the abdominal aorta and the inferior vena 

 cava. IC9 (805). 



J. E. Sweet, E. P. Corson-White and G. M. Saxon : The influence of certain diets 



upon the growth of experimental tumors. 1 10 (806). 

 Charles E. Simon and Mar tha A. Wood : On the inhibitory action of certain anilin 



dyes upon bacterial development. Ill (807). 

 R. M. Pearce : Waxy degeneration of muscle in venom intoxication. 1 12 (808). 

 Isaac Oit and J. C. Scott : Note on the effect of animal extracts upon the volume of 



the thyroid gland. 1 13 (809). 

 Sutherland Simpson: The relation of external temperature to hibernation. 114 



(810). 



Richard Weil : Anaphylaxis in immune animals. 115 (811)- 

 A.J. Carlson: The parathyroids and pregnancy. 116 (812). 



A. J. Carlson : The correlation between the physiological state of the thyroid of the 

 mother and of the fetus. 1 1 7 (813). 



A. J. Carlson : Parathyroid tetany and active immunity. 118 (814). 



A. J. Carlson and A. Woelfel : The solubility of various lead salts in the human 

 gastric juice and its bearing on the hygiene of the lead industries. 119 (815). 



A. M. Banta and R. A. Gortner : Certain observations on the occurrence of tyrosin- 

 ase in amphibian egg jell. 120 (816). 



A. M. Banta : Experiments on the light and tactile reactions of a cave variety and 

 open water variety of an amphipod species. 121 (817). 



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