Tiue aud Huakel, The Poisonous Efiect Exerted etc. 



325 



was similarly exposed to light and air and its toxic value again 

 determined. No increase in its poisonous activity was to be seen. 

 Of the tri-atomic phenols, pyrogallol and phloroglucin were 

 studied. 



Pyrogallol. Ce H. (OH) (OH) (OH) = 1:2:3. 



Table XI. 

 Begun May 25, 6 : 00 P. M. 



f.ioc ^= 355. 



K = 



