230 The Rev , Mr. Buckland’s account of Fossil Teeth and 
Plate XVII. 
1. Portion of the left upper jaw of the modern hyaena 
from the Cape. 
2. Inside view of No. l. 
3. Analogous portion of the left upper jaw of the fossil 
hyaena from Kirkdale. 
4. Inside view of No. 3, with the tooth of a water-rat 
adhering by stalagmite to a broken portion of the palate. 
5. Fragment from Kirkdale, showing five incisor teeth of 
the upper jaw, much worn down, and the inside of the palate. 
Plate XVIII. 
1. Outside view of the right lower jaw of the modern 
Cape hyaena. 
2. Analogous portion of lower jaw of the Kirkdale hyaena, 
being nearly one-third larger. 
3. Inside view of No. 2. 
Plate XIX. 
1. Fragment of the right lower jaw of an hyaena, showing 
the convex surface of the jaw and its teeth, that lay upper- 
most in the den, to be deeply worn by friction, and to have 
received a polish. The enamel, and one-third of the sub- 
stance of the teeth and bone on this side have been worn away. 
2. Concave surface of No. 1, having no marks of friction, 
polish, or decay: the enamel on this side of the teeth is per- 
fect and unchanged. 
3. Fragment of the right lower jaw of a young hyaena, 
having the convex surface only polished as in No. 1 ; and 
showing the cavities in which the second set of teeth were 
rising to succeed the first set; one of which, the posterior 
