Efject of Chetmcals on Groivth 



519 



TABLE XXVII 



Measurements of groivth in I-J^,000 strychnitf 



Groivth in i-jo,ooo strychnine. Normal growth took place in 

 a 1-50,000 solution of strychnine for the first 15 minutes (see 

 table XXVI). 



Further growth then took place, but was not so rapid as in the 

 control. At the end of 2 hours those in the strychnine were 

 dying. 



Growth m i-'/^,ooo solutioji of strychnine. For the first 15 min- 

 utes after separation, the halves in the strychnine increased at 

 the same rate as the control (see table XXVII). 



Further growth took place, but was not so rapid as in the con- 

 trol. At 24 hours, of 13 specimens in the strychnine 10 were 

 dead and 3 dying. 



Groivth in l-lOO,000 strychnine. Normal growth took place in 

 1-100,000 strychnine up to the age of 30 minutes, the specimens 

 in the alkaloid growing to the same size as in the control (see 

 table XXVIII). 



Growth then continued, but not so great in amount as in the 

 control. At 5 hours, those m the strychnme were much shorter 

 than the controls, but at 24 hours they had almost reached nor- 

 mal size again. At the age of 48 hours, the Paramecia in the 

 str\chnine had not grown as much as the controls; 14 specin.ens 



