i io Society for Experimental Biology and Medicine. 



Under both conditions uric acid was decomposed to the amount 

 of 50 per cent, of that present. Allantoin was one of the decom- 

 position products. In the first communication mention was made 

 of the fact that basic substances were formed in the process of 

 dissolution. 



77 (220) 



On the diuretic action of thymin. 

 By P. A. LEVENE. 



[From the Rockefeller Institute for Medical Research^ 



In work done by Sweet and the writer the observation was 

 made that the administration of thymin to a dog with an Eck fistula 

 caused marked diuresis. The experiments were continued this 

 year on a dog with an Eck fistula prepared by Dr. Carrel. The 

 dog had been kept on a purin free diet many weeks before the 

 experiment was begun. For three weeks preceding the experi- 

 ment the water consumed by the dog and the urine eliminated 

 were carefully measured. It was noted that administration ot 

 thymin was followed by marked diuresis. 



78 (221) 



On lysinglycyl obtained in the tryptic digestion of egg albumen. 

 By P. A. LEVENE and W. A. BEATTY. 



[From the Rockefeller Institute for Medical Research^ 



In the process employed by the writers a year ago for prepar- 

 ing the peptid prolinglycyl, a substance was produced from egg 

 albumen, which on further cleavage yielded only lysin and glyco- 

 coll. The substance could not be crystallized. It is a noteworthy 

 fact that peptids of the hexon bases obtained by Fischer and 

 Suzuki synthetically also failed to crystallize. 



