GENETIC TYPE AND THE ENDOCRINES 277 



PLATE 51 



Comparison of a human achondroplasic skull with two normal though different typed skulls. 



1 Achondroplasic skull, cranial index of 80.79. 



2 Dolichocephalic skull, cranial index 72.58. 



3 Brachycephalic skull, cranial index 100. 



