A first-(;enerati(>n iniiKin. 



This cow represents the most diflUull achievcnu'iU of hyhridiziiiK' ImfTaloes — namely, the first 

 cross, between a jnire buffalo bull and an ordinary cow. (Tiie reverse cross cannot be 

 made.) The jx-rcentag-e of failures in this cross is extremely high, and almost no male 

 calves are produced, partly, at least, because their height just back of the shoulders pre- 

 vents them from passing through the cow's pelvis. Hybrid cows of the sort shown in the 

 photogra])h are often barren. I)nt fertility is gained at each subsequent cross back to cattle 

 blood. (Figure .?.) 



192 



