GENETIC TYPE AND THE ENDOCRINES 



the figures along the left border of the graph. The features 

 recorded are listed immediately below the points on the curves 

 which indicate their values. 



At the points indicating cranial index values, the curves 

 for the two pure parent stocks are close together, and from 

 there on show increasing divergence for skull index, palatal 



DACHSHUND 

 FRENCH BULLDOG 



Text-figure 63. Dachshund-French bulldog cross. Comparison of skull measure- 

 ments of the pure breeds and their first and second generation hybrids. 



