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EXPLANATION OF THE PLATES. 
Plate III. 
1. Portion of the left upper jaw of the modern hyama from the 
Cape. 
2. Inside view of No. 1 . 
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 the inside of the palate, and 
five incisor teeth of the upper jaw, much worn down. 
Plate IV. 
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 V. 
1. Fragment of the right lower jaw of an hyaena, showing the 
convex surface of the jaw and its teeth, that lay uppermost in the 
den, to be deeply worn by friction, and to have received a polish. 
The enamel and one-third of the substance 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 perfect and unchanged. 
3. Fragment of the right lower jaw of a young hyeena, 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 these, the posterior molar tooth, still remains in its place. 
