Fig. 40 



Fig. 41 



Fig. 42 



Fig. 43 



Fig. 44 



Fig. 45 



Fig. 46 



Fig. 47 



Figs. 40-47. Results of a crass between varieties of guinea-pig differing in three unit-characters, color, 

 length and roughness of fur. Fig. 40, the colored, short-haired and smooth parent. Fig. 41, the albino, 

 iong-haired and rough parent. Fig. 42, one of the Fi young, colored, short-haired and rough. Figs. 

 43-47, five new varieties occurring among the F2 young. Fig. 43, colored, long-haired and rough. 

 Fig. 44, colored, long-haired and smooth. Fig. 45, albino, short-haired and rough. Fig. 46, albino, 

 long-haired and smooth. Fig. 47, albino, short-haired and smooth. Throe other F2 varieties were 

 like the parents and grandparents respectively (Figs. 40-42) . 



