742 THE AMERICAN NATURALIST. [VoL. XXXIV. 
PLATYBASIC CRANIA. JuGuLaR Process. 
Number. | Percentage. Number. Percentage. 
Eskimos .-. . 49 6.1 48 2 
New England . 51 2 45 o 
Flórnd$ soo voa 55 o 38 o 
Ohio and Tennessee . 477 .2 359 5 
New Mexico 21 o 2I 4.8 
California . . 158 6 155 o 
Miscellaneous . 57 1.7 55 o 
Mexico . . < 52 o 48 2.I 
North America 871 d 721 5 
Peru . 447 o 439 9 
Total . 1318 3 1160 7 
depth, care must be exercised, and it is practically impossible 
to wholly eliminate the “personal equation "; only cases in 
which an actual concavity exists are-here noted. While it is 
of slightly more frequent occurrence among the crania from 
the coast of Peru than in those from the northern continent, it 
will be observed that it is by no means confined to southern 
tribes, as is shown by the high percentage among the Eskimos. 
Aymara Fossa. FUSED ATLAS. Torus PALATINUS. 
" ái Per- 
Number. Somes Number ai Number. centage: 
Eskimos . . 49 10.2 48 o 43 18.6 
New England . 50 6 46 2 48 8.3 
Flori 47 8.5 36 o 8 4 
Ohio and orinis 425 37 358 8 377 = 
New Mexico 21 o 21 o 2I 9-5 
California doe 158 38 155 o 158 ans 
Miscellaneous. . . 55 1.8 54 o s 75 
Wo ,. 4 Cy 47 6.4 47 o 42 47 
North America 803 zt 717 6 704 nad 
Puu. d wx» 5.9 438 2 436 7 
Tomb... s. 1240 4.8 1155 FR d 
Fused Atlas. — As might be expected, the Ohio-Tennessee 
collection contained several skulls having their condyles firmly 
joined with the atlas, sometimes resulting in the almost com- 
