1913] Thuisco A. Erpf-Lefkomcs and Jacob Roscnhloom 235 



sodium hydroxid Solution necessary to neutralize the acidity devel- 

 oped by i gram of tissue. The amylase values are given in terms of 

 the amount of maitose in mg. formed per gram of tissue. The 

 acid- and alkali-protease values are given in terms of the number of 

 millimeters of gelatin digested in a tube by i gram of tissue. 



The results show that lipase and amylase were most abundant in 

 both the ovaries and uterine mucosae of pregnant animals. Preg- 

 nancy had no quantitative effect on the acid-protease (pepsin), but 

 alkali-protease was increased in both the ovary and uterine mucosa. 

 The bladder extracts contained lipase, amylase, and acid-protease 

 (pepsin), but no alkali-protease (trypsin). 



