CRUISE OF STEAMER CORWIN IN THE ARCTIC OCEAN. 39 
tioned, instead of forming a triangle they may, like the asymptotes of a parabola, be extended to 
infinity and never meet: 
/ 
| ~Y 
os he i ae 
ec 
LNB... 
AW 
B 
For purposes of comparison a number of orthographic outlines, showing the contour of civil- 
ized crania from a vertical point of observation, are herewith annexed. No.1 is that of an eminent 
mathematician who committed suicide; No. 2, a prominent politician during the civil war; No. 3, 
a banker; and No. 4, a notorious assassin. Nos. 5 and 6 are negro skulls. Further comparison 
may be made with the Jewish skull, as represented in No. 7, in which the nasal bones project so 
far beyond the general contour as to form a bird-like appendage: 
A collection of Aleutian heads, as seen from a vertical point of observation, when I looked 
down from the gallery of the little Greek church at Ounalaska, presented at first sight certain 
collective characters by which they approach one another. But anatomists know that a careful 
comparison of any collection will show extremely salient differences. In fact, individual differ- 
ences, SO numerous and so irregular as to prevent methodical enumeration, constitute the stumbling- 
block of ethnic craniology. Take, for instance, a number of the skulls under consideration: in 
proportions they will be found to present very considerable variations among themselves. The 
skulls figured by A and B are respectively brachyeephalie and dolichocephalic. The former has 
an internal capacity of 1,400, the latter 1,214 cubic centimeters; bunt the facial angle of each is 80°, 
and in one Eskimo cranium it runs up to 84°. If the facial angle be trustworthy, as a measure of 
the degree of intelligence, we have shown here a development far in excess of the negro, which is 
placed at 70°, or of the Mongolian at 75°, and exceeding that observed by me in many German 
