MAMMALIA. 
17 
this genus next the Sloths, with the remark, that it is organized on the 
plan both of the Megalonyx and Megatherium, and that, on this account, 
its place among the Sloths appears incorrect, as the primitive genera 
were covered with a coat of mail. The question, whether the hmnan 
bones, found with the antediluvian remains of animals, may be of the 
same age, Lund thinks it at present impossible to answer with any 
degree of certainty. 
Human Footprints in Solid Limestone. By Dav. Dale 
Owen, M.D. (Sillim. Americ. Journ. 1842, xliii. No. 1, p. 14). 
When I recognised in the plate accompanying this paper footsteps, 
undoubtedly human, I entered on the perusal of it with caution, and the 
more so, when it appeared that the author was also the possessor of the 
specimen, for he, in common with us all, would naturally lean towards a 
theory that gave additional value and interest to it. My fears were, 
however, gToundless. Dr. Owen explains these footsteps to be the works 
of the idle Indians, in opposition to the opinion of Shoolcroft and Man- 
tell, who had considered them to be those of the antediluvians. Owen’s 
explanation is doubtless equally applicable to the human steps on the 
Zauberberge, northward of Athens-Georgia. (Inst. 1842, p. 140). That 
they are not those of man may be confidently asserted, when we learn 
that this limestone belongs to a formation older than the coal. I am of 
opinion, that in general, animal traces of this kind in rocks will be found 
to have some similar origin to those described by Dr. Owen ; but that 
this is not the case with respect to the impressions on the sandstone 
slabs of Hildhurghausen, I am equally persuaded. A personal inspection 
of these slabs, during the last summer, has satisfied me, that the tracks 
have been made by an animal ; as truly as those are in the Weilheimer 
Lime-tophus, which I had already discovered two years previously, and 
concluded to be made by the impressions left from the tread of stags. 
From what animal the Hildhmrghausen tracks have had their origin, I 
am at a loss to say, for I am not sure even of its class ; but analogy may 
lead us to conclude that it was a reptile. Similar prints have lately been 
found, in variegated sandstone, at Aura on the Saul (UnterfranJcen). 
Rumpf in Jahrb. f. Min. 1842, p. 450. 
QUADRUMANA. 
Becherches d’ Anatomic Comparee sur le Chimpanse, par 
W. Vrolik. Amsterd. 1842. Folio. 
The internal structure of the Chimpansee was first described by Tyson, 
in the year 1699, in a masterly work for the time. It was more than a 
61 
