230 
Mr. Corse's Observatiotis on the 
A line drawn between L and L, will show that some of the 
anterior teeth must be worn down to the fangs, before several 
of the posterior ones can cut the gum. 
Tab. VIII. 
Fig. 1. Shows the inferior parts of the teeth of the second 
grinder in the lower jaw, represented in Tab. VI. and the man- 
ner in which each tooth or lamina is joined to the one next it. 
The three anterior teeth are completely joined to each other, 
and are partly seen within their common fang ; but the junction 
of the three posterior ones is not complete, except at the centre. 
The roots of these, at the lower part, are beginning to be 
formed ; but, anteriorly, are farther advanced, and join the fang 
common to the three foremost teeth. 
AA. The nine teeth of which the grinder is composed. 
B. The three anterior teeth, completely joined to each other. 
C. Three of the posterior teeth, where the union is com- 
pleted only in the middle. 
DDD. The space between the lamellae of the separate teeth, 
where they are approaching to join each other, and cover the 
enamel, as shewn in Tab. XII. 
EEEEE. The centres of the different teeth, which will after- 
wards be filled up, as the ossification of the fangs advances. 
Fig. 2. Is intended to show the same process in the after- 
most grinder of the upper jaw, represented in Tab. VII. The 
six anterior teeth are completely joined, and the roots partly 
added. The four next are connected at the external and internal 
sides only. The four aftermost layers remain quite separate 
and distinct from each other, where the roots are to be added. 
The incipient roots appear in the shape of a thin bony lamella. 
