402 



Proceedings Columbia Biochemical Association [April 



A SUMMARY OF THE NAMES OF THE AUTHORS AND OF THE 

 TITLES OF THE SUCCEEDING ABSTRACTS (73-8s) 



J. J. Bronfenbrenner and H. Noguchi. 

 On the resistance of various spiro- 

 chetes in cultures to the action of 

 chemical and physical agents. (73) 



Ross A. GoRTNER. Studies on the 

 chemistry of embryonic growth. I. 

 Certain changes in the nitrogen 

 ratios of developing trout eggs. 



(74) 



E. Newton Harvey and W. E. Hoy. 

 A simple class-room experiment 

 for demonstrating the production of 

 acid by contracting muscle. (75) 



Henry H. Janeway and Ephraim M. 

 EwiNG. The relation of acapnia to 

 shock, and a consideration of the 

 mechanical effects of hyper-artificial 

 respiration upon the circulation. 

 (76) 



Jacob Rosenbloom and Benson A. 

 CoHOE. Metabolism in a case of 

 myotonia atrophica. (77) 



Jesse A. Sanders and Clarence E. 

 May. A method for the determina- 

 tion of tryptophan in protein mate- 

 rial. (78) 



Lorande Loss Woodruff. The pro- 

 duction of specific excretion prod- 

 ucts by infusoria. (79) 



B 



Ernest D. Clark and Clayton S. 

 Smith. Toxicological studies on 

 the mushrooms, Clitocyhe illudens 

 and Inocybe infida. (80) 



IsiDOR Greenwald. The phosphorus 

 content of the blood and serum of 

 normal and parathyroidectomized 

 dogs. (81) 



IsiDOR Greenwald. Further metab- 

 olism studies upon parathyroidecto- 

 mized dogs. (82) 



Beatrix H. Gross. A study of uro- 

 erythrin. (83) 



Joseph S. Hepburn. Comparison of 

 methods for the preparation and 

 determination of cholesterol. (84) 



Paul E. Howe and William J. Gies. 

 A preliminary study of the resist- 

 ance of fasting dogs to hemorrhage. 

 (85) 



A. ABSTRACTS OF PAPERS ON RESEARCH BY NON-RESIDENT 



MEMBERS 



73. On the resistance of various spirochetes in cultures to 

 the action of chemcial and physical agents.^^ J. J. Bronfen- 

 brenner AND H. Noguchi. (Rockefeller Institute for Medical 

 Research, Nezu York City.) The toxic effect exerted by mercuric 

 Chlorid, arsenious oxid, trikresol, phenol, saponin, sodium taurocho- 

 late, sodium hydroxid, hydrochloric acid, gentian violet, alcohol and 

 "606" is from twenty to one hundred times greater if tested upon 

 spirochetes than it is against colon bacillus. The toxic effects of 

 salvarsan are increased from two to five times, and possibly more, 



^Bronfenbrenner and Noguchi: Journal of Pharmacology and Experimental 

 Therapeutics, 1913, iv, p. 333. 



