﻿502 The Philippine Journal of Science 



3. The amount of the alcohol-soluble proteose necessary to 

 produce these effects (0.4 gram per kilogram of body weight) 

 shows that in the process of separation there has been neither 

 concentration nor loss of the active physiological principle. The 

 more purified proteose was not less effective than the cruder 

 preparation. This action must then be ascribed to the proteoses 

 themselves and not necessarily to an alcohol-soluble impurity. 



I with to thank Dr. Isabelo Concepci6n for the assistance which 

 he has rendered me both in the preparation of the proteoses and 

 in the carrying out of the blood-pressure experiments. 



