440 



JENNINGS— HEREDITY IN PROTOZOA. 



[April 24, 



sample, 69, or more than one third, are longer than the longest of 

 the specimens beginning fission. Only nine of the entire 200 falls 

 belcw the mean length of the specimens beginning division. 



10 116 128 140 152 164 176 li 

 Length in Microns. 



200 212 224 



