NOS. 
26. 
ots 
28. 
29. 
30. 
Sl. 
32, 
33. 
34. 
35 
36, 
ov. 
38. 
39. 
40. 
Al. 
42 
43 
44, 
45 
A6. 
AT. 
48. 
49. 
4 
Lower jaw of an undescribed animal, peculiar for the forma- 
tion of the chin, which has two large elongated insertions for 
the attachment of strong muscles. 
A lower jaw of the same species, only an older animal. 
A part of the left ramus of a young animal as above. 
Two ramuses of an undescribed animal, being peculiar for 
having but one tooth on each maxillary, and unusually large 
mental foramen. 
Right ramus of a Mastodon of the largest class in a good state 
of preservation, 
Left ramus of a Mastodon species, with a remarkable elonga- 
tion of chin. 
Left ramus of the lower jaw of a Mastodon, in a high state of 
preservation. 
Left ramus of a Mastodon, having an unusually large foramen. 
Right ramus of a Mastodon having two teeth. 
Right ramus of a Mastodon with its chin. 
Right ramus of a Mastodon with one tooth of peculiar forma- 
tion. 
Right ramus of a Mastodon with two teeth. 
Right ramus of a Mastodon with two teeth and one alveola. 
An unusually large Mastodon ramus with three teeth. 
Ditto. 
Ditto, with three teeth and chin. 
Greatest part of a ramus, hie: a portion of the condil and 
two teeth. 
Right and left ramus, with two teeth and two alveoli each. 
One ditto, with one tooth concealed in the maxillary and one 
alveoli. 
One ditto, with two teeth, two alveoli, and chin. 
Part of a ramus with one tooth. 
The right side of a skull in a high state of preservation with 
three teeth and the socket for the tusk. 
Ditto of a young animal, with eight teeth and a socket for the 
tusk. 
Extremely fine part of a Mastodon, being the roof of the 
mouth and on each side one tooth, together with the socket 
of the tusk. 
50. Ditto with 2 teeth on one side and 1 on the other. 
. Ditto with 2 teeth on each side. 
