438 
M. Cuvier supposes the same division of species to be evinced as 
appeared by the head and jaws. 
From the strictest comparison of the rich collection of these fossil 
bones, to which he had access, with each other, and with the skeletons 
of existing species of bears, M. Cuvier considered himself authorized 
to make the following conclusions : 
1. The bones which are most commonly found in these caverns, 
examined each separately, belong to the genus Bear. 
2. The skulls, and some of the large bones, present such differences 
as should induce us to consider them as proceeding from species of 
bears different from those which naturalists have hitherto described. 
3. These skulls, and some of the large bones, the os humeri and 
femoris for example, differ sufficiently among themselves to allow us 
to believe that the bones of two different species of bears have been 
here confusedly buried together. 
4. Some of the bones of one of these species are more like to those 
of the bears of the present day than those of the other. There are 
even bones, among those of the one, as the os humeri, &c. which are 
not to be distinguished, if seen by themselves, from those of the com- 
mon bear. There are others, in both species, which appear to be thus 
circumstanced, as those of the carpus, &c. 
5. But the skulls are sufficient to furnish such characters as leave no 
reasonable doubt ; and as those fossil skulls, which have the fore- 
head tumid ( hornbd ) , appear to be separated from our common bears 
more than the fossil skulls with a flat forehead, it is natural to refer to 
the former those fossil bones of the limbs which differ in the same 
degree from their analogues in our common bears. The bones of the 
body or limbs, which more resemble those of these latter animals, are 
more safely referable to the species with a flat forehead. 
But to complete our knowledge of the skeleton, as M. Cuvier ob- 
serves, it would be necessary to have all the bones of each species, 
which at present is not the case, we only having, under two forms. 
