5i8 A.H. Estahrook 



Growth of Paramecium in Strychnine after Fission 



Growth in strychnine was measured directly in the way pre- 

 viously described (page 491). 



Growth in 1-12, §00 strychnine. For the first five minutes 

 after separation, those in the alkaloid grew to the same length 

 as the controls. At 15 minutes, those in the strychnine decreased 

 in length until they were as short as they were at the time of 

 fission, and remained so for 60 minutes, when all were dead. 

 The width of those in the alkaloid increased very rapidh' in the 

 first 30 minutes (see table XXV). 



table XXXV 



Measurements of growth in 1-12,500 strychnine. 



TABLE XXVT 



Measuremente oj Growth in 1-50,000 strychnine 



