CONTENTS 



PAGE 



A MoDiFiED Hempel Gas Pipette. Stanley R. Benedict i 



The InFLUENCE OF ArSENIC UPON THE BiOLOGICAL TRANSFOaMATION OF Ni- 



TROGEN IN SoiLS. /. E. Grcüves 2 



The Nature of Humus and its Relation to Plant Life. S. L. Jodidi 17 



ClEAVAGE of BeNZOYLALANINE and ACETYLGLYCINE BY MoLD EnzYMES. 



Arthur W. Dox and W. Eugene Ruth. 23 

 A CoLOR Reaction of Glycine when Boiled with Chloral Hydrate. 



Edwin D. IVatkins. 26 

 Studies on Water Drinking : 



15. The Output of fecal bacteria as influenced by the drinking of dis- 



tilled water at meal time. N. R. Blatherwick and P. B. Hawk. ... 28 

 A Note on the Determination of Ammonia in Urine. 



Stanley R. Benedict and Emil Osterberg. 41 

 Studies of Aeration Methods for the Determination of Ammonium 



NiTROGEN : 



3. The ammonium nitrogen in beef. 



Jacob Shtdansky and William J. Gies. 45 

 A Study of the Influence of Cold-storage Temper.'Vtures upon the 



Chemical Composition and Nutritive Value of Fish. Clayton S. Smith. 54 

 A Further Study of the Chemical Composition and Nutritive Value of 

 Fish Subjected to Prolonged Periods of Cold Storage. 



William A. Perlsweig and William J. Gies. 69 

 The Influence of Chronic Undernutrition on Metabolism. 



Sergius Morgulis. 72 

 Nitrogen Metabolism During Chronic Underfeeding and Subsequent 



ReAlimentation. Sergius Morgulis 74 



Proceedings of the Biological Section of the American Chemical So- 

 ciety, Rochester, N. Y., Sept., 1913 : 



1. Executive Proceedings. /. K. Phelps, Secretary 76 



2. Chairman's Address. Carl L. Aisberg, Chairman 77 



3. Scientific Proceedings (Abstracts). I. K. Phelps, Secretary 80 



The Biochemical Society, England 96 



The Agricultural Colleges and Experiment Stations in the United 



States. A. C 98 



Biochemical Bibliography and Index. William A. Perlzweig 103 



Biochemical News, Notes and Comment 112 



Editorials: Including additional quotations from letters, and a sum- 



MARY of PUBLISHED OPINIONS, ON THE MaTHEWS' PLAN FOR THE ORGANI- 

 ZATION OF AN American Biological Society 133 



The Biochemical Bulletin is a quarterly biochemical review. It pub- 

 lishes results of original investigations in biological chemistry, miscellaneous 

 items of personal and professional interest to chemical biologists, original con- 

 tributions to research, preliminary reports of investigations, abstracts of papers, 

 addresses, lectures, criticism, reviews, descriptions of new substances, methods and 

 apparatus, practical suggestions, biographical notes, historical summaries, bibli- 

 ographies, quotations, questions, news items, proceedings of societies, personalia, 

 views on current events in chemical biology, etc. 



Subscription prices. Vol. I: $6.00 (No. i, $1.50; No. 2, $2.50; No. 3, $2.00; 

 No. 4, $1.50). Vol. II: $5.00 (No. 5, $2.00; No. 6, $1.50; No. 7, $2.00; No. 8, 

 $1.00). Vol. III: $2.75 (domestic); $3.00 (foreign.); $5.00 after July i, 1914. 



Address remittances, manuscripts and correspondence to the Managing 

 Editor, William J. Gies, 437 West sgth St., New York. 



