300 DIGESTION 



any assistance from the abdominal pressure; but with very solid excrement, 

 the power of the intestinal musculature itself is not sufficient and the abdom- 

 inal pressure is called upon. 



REFERENCES. W. Connstein, "Uber fermentative Fettspaltung," in Die 

 Ergebnisse der Physiologic, III, 1, 1904. D. Gerhardt, "Uber Darmfaulnis," 

 in Die Ergebnisse der Physiologie, III, 1, 1904. J. P. Pawlow, "Die Arbeit 

 der Vcrdauungsdriisen," Wiesbaden, 1898. C. Oppenheimer, " Die Fermente und 

 ihre Wirkungen," 2d edition, Leipzic, 1903. 



