iQisl Edgar G. Miller, Jr. 201 



tained that the loss in weight is usually insufficient to account for 

 the amount of oxidation and has postulated, therefore, the theory 

 of a nutritive value for aquatic animals of substances dissolved in 

 the water.® 



142. A Standard for the determination of ammonia by 

 means of Nessler Solution. Anton R. Rose and Katherine R. 

 CoLEMAN. {Research Laboratory, Fenton B. Turck, M.D., Di- 

 rector, N. Y. City.) Published in the preceding issue: Biochem. 



Bull., 1914, iii, p. 40?- 



143. A micro-urease method for the determination of urea. 

 Anton R. Rose and Katherine R. Coleman. {Research Labo- 

 ratory, Fenton B. Turck, M.D., Director, N. Y. City.) Published 

 in the preceding issue: Biochem. Bull., 1914, iii, p. 411. 



144. The influenae upon metabolism of feeding B. coli. 

 Anton R. Rose and Arthur Knudson. {Research Laboratory, 

 Fenton B. Turck, M.D., Director, N. Y. City.) Bouillon inoculated 

 with B. coli was fed to dogs in a basal ration of meat, cracker meal 

 and lard. There was a somewhat pronounced change in the com- 

 position of the urine during the first week, but later a gradual ten- 

 dency towards the status of the normal periods. The amounts of 

 sulfur and nitrogen ran parallel. The elimination of these elements 

 in the urine was temporarily decreased. There was marked diminu- 

 tion of neutral sulfur with an increase of sulfäte sulfur. The ether- 

 eal sulfur rose immediately and then gradually subsided to the same 

 plane as in the preliminary period. Feeding oi B. coli was followed 

 by pronounced increase in indican in the urine, but this soon disap- 

 peared, and protracted feeding of the bacteria did not bring it back. 

 In general, the introduction of B. coli caused disturbance, but there 

 was readjustment in the course of two or three weeks. 



145. A further study of the influenae of electricity on metab- 

 olism.'^ Matthew Steel. {Long Island College Hospital.) 

 The present research consists of five experiments, of 9 to 12 days 

 each. Four different kinds of electrical modalities were used. The 

 subject was a normal healthy adult, and the diet was non-purin 

 and uniform for each experiment. 



«Further results of this research have lately been published in detail in 

 the Journal of Biological Chemistry, 1915, xx, p. 37.— (Ed.) 

 7 Steel : Biochem. Bull., 1914, üi, P- 309- 



