30 



THE TONER LECTURES. 



They may overlap vomer as follows : 692, Carib ; 963, 903, Ne- 

 gro ; 240, Australiau ; 87, Peruvian; 737, Otoe; 1281, Peruvian, 

 12 years old ; 986, Irish, 16 years old. 



Fig. 6.— The posterula of an Irish girl, aged 16 years (No. 986, A. N. S.), 

 showing an extensive fissure hetween the vaginal process of the sphenoid hone 

 and the palate bone on the right side. Both these parts fail to join the 

 vomer. On the left side the same processes not only join the vomer, but in 

 one place tend to overlap. 



1. Vaginal pi'ocess. 



2. Palatal bone, a conspicuous interval is seen lying between this ele- 

 ment and the vomer. 



3. Vomer. 



4. Process from vomer joining the vaginal process to form an irregular 

 union. 



Open spaces indicate the failure of union between the vaginal and 

 palatal elements and the vomer. 



The shaded space back of the vomer indicates the inequality of level be- 

 tween the vomer and the body of the sphenoid bone. 



The vaginal and sphenoidal plates may be firmly united through- 

 out, or permit a foramen of varying size to appear between them. 

 The plates may be depressed below the plane of the vomerine alse.^ 



As a rule, the plates agree with the alse in general character — 

 i. e., when the plates are hyperostosed the vomer is also; but the 

 process may be reversed, and the plates be thin when the alse are 



1 572, Sandwich Islander. 



