PLATE LXXI. 
Teeth and bones of Mastodon produolm, one-half natural size. 
Fig. 1. Siipoi'ior molars, IVoiii the first to the fourth, of both sides, seen from below ; the fourth not pro¬ 
truded. 
Fig. 2. The same series of the right side, viewed from withiu. 
Fig. 3. The last or si-vtli inferior molar of the lower jaw, figured iu Plate LXX, from the inuer side. 
Fig. 4. The sixth inferior molar of a third individual, from above. 
Fig. .b. Fragment of a worn third molar; the grinding face. 
Fig. (i. Fragment of the posterior part of a molar tootli. 
Fig 7. Extremity of a superior tusk. 
Fig. 8. Fragment of an inferior tusk, from above; a, distal extremity. 
I'lG. P. Cnneiloim bone of tLe right side, from above; a, from below ; b, from behind. 
