160 Life and Death, Heredity and Evolution 



A 



ABNORMAL 

 ABNORMAL 



ABNORMAL! 



ABNORMAL ABNORMAL ABNORMAL ABNORMAL 



ABNORMAL,- 



DEAD 



U 



r ^^ ^ 



DEAD 



Figure 44. A family of Paramecium caudatum, descended from an 

 ex-con jugant, and showing hereditary abnormalities. Besides the indi- 

 viduals figured, other abnormal branches of the family are indicated 

 by the lines with the word "abnormal." After Stocking, 1915. 



abnormalities, although none were present before conjuga- 

 tion. 



