GENETIC TYPE AND THE ENDOCRINES 

 PLATE 44 



247 



Hybrids derived from backcrossing the f\ dachshund-Boston terrier with the pure Boston 

 terrier stock showing the great variation in size, skull type and other physical characters. 



1 525$ (L) and 524^ (R). 4 634 <?. 



2 (LtoR) 636$, 634 J 1 , 635^. 5 Litter 828-831. 



3 525 ?. 



