1915] Edgar G. Miller, Jr. 2ii 



A. ABSTRACTS OF PAPERS BY NON-RESIDENT MEMBERS 



152. The nature of the Abderhalden reaction. J. Bron- 

 FENBRENNER. {Patfiol. Gfid ReseGTch Lab., West Penn. Hosp., 

 Pittsburgh, Pa.) Published in this issue: Biochem. Bull., 1915, 



iv, p. 87. 



153. The role of serum anti-trypsin in the Abderhalden test. 

 J. Bronfenbrenner, W. J. Mitchell, Jr., and Paul Titus. 

 (Pathol. and Research Lab., West Penn. Hosp., Pittsburgh, Pa.) 

 Published in this issue: Biochem. Bull., 1915, iv, p. 86. 



154. Comparisons of urinary and serum findings in the di- 

 agnosis of tuberculosis. J. Bronfenbrenner, J. Rockman and 

 W. J. Mitchell, Jr. {Pathol. and Research Lab., West Penn. 

 Hosp., Pittsburgh, Pa.) Published in this issue: Biochem. Bull., 

 1915, iv, p. 80. 



155. The protein content of the gastric juice in normal and 

 pathological states. J. Alexander Clarke, Jr., and Martin E. 

 Rehfuss. Communicated by P. B. Hawk. {Lab. of Physiol. 

 Chem., Jefferson Med. Coli, Phila.) The protein content of the 

 gastric juice was investigated by the method of Wolff, namely by 

 successively diluting the gastric juice and adding phosphotungstic 

 reagent. It was found that the normal gastric juice, per se, con- 

 tained only traces of protein, never giving a reaction in dilutions 

 greater than i : 40. The protein content of the specimens removed 

 by the f ractional method, after the administration of Ewald meals, 

 was also determined. The macerated Ewald meal in vitro never 

 gave a reaction in a dilution greater than i : 40, Treated in the 

 incubator with artificial gastric juice, the authors were able to dem- 

 onstrate an increasing content due to the effect of the gastric juice 

 on the proteins of the bread. If therefore material removed from 

 the stomach at intervals develops a greater protein content than the 

 theoretical content due to the action of the gastric juice on the 

 bread proteins, we are able to say that it comes from other sources 

 than bread. In functional states and in normal cases the protein 

 curve followed approximately the curve for the action of the gastric 

 juice on the Ewald meal in vitro. In pathological conditions, such 

 as ulcer and Cancer, the curve was entirely different. The authors 

 pointed out the importance of dififerentiating the presence of blood. 



