EXPLANATION OF THE PLATES. 431 



Fig. 4. Relative direction and position of the tusks, with a conjectural 

 view of the shape of the cranium, and the manner in which it 

 was probably associated to the lower jaw. The dexter tusk 

 was shorter, stouter, and more crooked than its fellow : The 

 point had the appearance of having been worn and blunted by 

 use. Its form afforded abundant evidence of the preference 

 the living animal had given to the right side, 



PLATE III. 



Fig. 1 . Back or large upper grinder of the right side. Length 6 inches- 

 Mean breadth, 3 inches- 



Fig. 2. Bird's eye view of half the lower jaw, displaying the angle of 

 divergence. There was enough of the right side left to show 

 its direction. 



Fig. 3. Perpendicular section -of the aveolar progress of the right branch 

 of the lower jaw, giving a view of the large or back grinder, 

 and direction and figure of the roots. They are hollow, and 

 the external lamina of bone is seen peeling off. 



Fig. 4. Tooth and part of the jaw of a creature resembling the fossil 

 animal of Maestricht. It was found at the base of the Never- 

 sinck hills, in New-Jersey, among belemnites and oyster- 

 shells. 



Fig. 5. A belemnite, from the same stratum. 



Fig. 6. Petrified echinus from Kentucky. They are said to be frequent 

 in the Great Cavern, near the Green river. 



Fig. 7. Petrified echinus, from the upper country of Georgia. There 

 were many more at the place whence these were taken. 



Fig. 8. Red oxyd of iron, containing encrinites and shells, from Oaei~ 

 da county, New-York. 



FINIS. 



