7 
354 Morton’s Crania Americana. 
different fibres ;* and Haller and Van Swieten were of opinion 
that the internal senses occupy, in the brain, organs as distinct as 
the nerves of the external senses.t Cabanis entertained a similar 
notion,{ and so did Prochaska. Cuvier says that ‘‘Certain paris 
of the brain, in all classes of animals, are large or small, accord- 
ing to certain qualities of the animals ;’§ and he admits that 
Gall’s doctrine of different faculties being connected with differ- 
ent parts of the brain, is nowise contradictory to the general prin- 
ciples of physiology.|| 
If, then, there be reason to believe that different parts of the 
brain manifest different mental faculties, and if the size of the 
part influence the power-of manifestation, the necessity is very 
evident of taking into consideration the relative proportions of the 
different parts of the brain, in a physiological enquiry into the 
connection between the crania of nations and their mental qual- 
ities. To illustrate this position, we present exact drawings of 
two casts from nature; one, figure 1, is the brain of an Ameri- 
can Indian; and the other, figure 2, the brain of an European. 
Both casts bear evidence of compression or flattening out, to some 
extent, by the pressure of the plaster ; but the European brain is 
the flatter of the two. We have a cast of the entire head of 
this American Indian, and it corresponds closely with the form of 
ihe brain here represen 
It is obvious that the een quantity of brain, (although 
probably a few ounces less in the American,) might be the same 
in both ; and yet, if different portions manifest different mental 
powers, the characters of the individuals, and of the nations to 
which they belonged, (assuming them to be types of the races,) 
might be exceedingly different. In the American Indian, the 
anterior lobe, lying between A A and BB is small, and in the 
European it is large, in proportion to the middle lobe, lying be- 
tween B Band CC. ‘In the American Indian, the posterior lobe, 
lying between C and D is much smaller than in the European. 
In the American, the cerebral convolutions on the anterior lobe 
and upper surface of the brain, are smaller than in the 
ropean. 
en en Rae Te 
= * Gu , IH, 33. + Van Swieten, I, 454 
$ == du Physique et du Moral de I’ Hosaae, 2de Edit. I, 233, 4. 
ie comparée, tome II. 
i Rapport Historique sur les Progrés des Sciences Naturelles, &c. p. 193. 
