520 



A.H. Estabrook 



in the strychnine had not divided and measured 181.2 X 44.1 

 microns, while 14 specimens in the control had increased by divi- 

 sion to 33 and these measured 197.4 X 51.6 microns. Thus we 

 find that in the 1-100,000 strychnine normal growth takes place 

 up to the age of 30 minutes, then further growth ensues, but is 

 not so great in amount and the specimens do not become as large 

 at 48 hours as in the control. Division is also stopped in this 

 strength of strychnine. 



Growth in 1-12^,000 strychnine. This concentration has no 

 efiect on the growth (see table XXIX.) 



TABLE XXVIII 



Measurements of growth In 1-100,000 strychnine 



TABLE XXIX 



Measurements oj growth in I-I2§,000 strychnine 



