PAGB 



2. The American Society of Biological Chemists. 



Alfred N. Richards, Secretary. 275 



3. The American Society for Pharmacology and Experimental Thera- 



peutics. John Aner, Secretary 27g 



Meeting of the American Society of Animal Nutrition (American 



Society of Animal Production) . Lewis W. Fetzer 282 



Proceedings of the Eighth Scientific Meeting of the Columbia Univer- 



siTY BiocHEMicAL ASSOCIATION. Alfred P. Lothrop, Secretary ;.. 284 



Folio Microbiologica. C. A. Pekelharing 297 



BiocHEMiCAL Bibliography AND Index. William J. Gies 298 



BiocHEMicAL News, Notes and Comment: 



General 307 



Columbia University Biochemical Association 321 



Columbia Biochemical Department 324 



Editorials : 



New Plan of Quarterly Issue of the Bulletin 329 



Carl L. Aisberg 329 



Stock Poisoning Due to Spoiled Silage. Help ! 330 



Demand for Biological Chemists in the Hospitals 330 



Federation of American Societies for Experimental Biology 331 



Electrons 332 



No. 7. April, 19 13. 



PAGE 



Heinrich Ritthausen (Portrait) 334 



Appreciation. Thomas B. Osborne 335 



Bibliography. Lewis W. Fetzer 339 



Dinner to Professor Chittenden: Testimonial by his Pupils. '94S 349 



Society for Experimental Biology and Medicine: Tenth Anniversary 

 Meeting and Dinner. Nineteen O. Three 358 



Methods for the Electrometric Determination of the Concentration of 

 Hydrogen Ions in Biological Fluids. K. A. Hasselbalch 367 



A Method for the Determination of Tryptophan Derived from Pro- 

 teins. Jesse A. Sanders and Clarence E. May 373 



Physical Chemistry of Muscle Plasma. Filippo Bottazzi 379 



Fasting Studies : IL A Note on the Composition of Muscle from Fast- 

 iNG DoGs. H. C. Biddle and Paul E. Howe 386 



SoME Notes on the Form of the Curve of Carbon-dioxide Excretion Re- 

 suLTiNG from Muscular Work Following Forced Breathing. 



G. O. Higley. 390 



The Influence of Barometric Pressure on Carbon-dioxide Excretion in 

 Man. G. O. Higley 393 



The Relation of Acapniato Shock, andaConsideration of the Mechan- 

 iCAL Effects of Artificial Hyper-respiration upon the Circulation. 



Henry H. Janeway and Ephraim M. Ewing. 403 



Cleavage of Pyromucuric Acid by Mold Enzymes. 



Arthur W. Dax and Ray E. Neidig. 407 



Analysis of the Ash of the Castor Bean. Marston Lovell Hamlin 410 



Notes on the Chemical Nature of the " Tannin Masses " in the Fruit 

 of the Persimmon. Ernest D. Clark 412 



xü 



