4L4 Dentition as indicative of the Age 
infundibulum originally existed, and any good observer looking- 
at the two mouths would decide that " Kremlin" was older than 
Fig. 21. — Incisors of Horse, (" J^piVus,") at nineteen. 
" Epirus." It is, however, quite certain that both horses were 
of the same age, and both of them much older than the teeth 
indicated them to be. 
The Teeth of the Ox. 
In the front of the mouth of the ox there are eight incisors or 
cutting teeth in the lower jaw only ; an elastic pad of fibrous 
tissue, covered with mucous membrane, takes the place of teeth 
in front of the upper jaw. The incisors may be distinguished 
as centrals, or first-pair ; middles, or second-pair ; laterals, or 
third pair ; and corners, or fourth pair ; the same terms being 
equally applicable to the temporary and permanent organs. 
Temporary incisor teeth are easily distinguished from per- 
manent, chiefly by their size. The fangs of the temporary 
incisor teeth are much shorter than those of the permanent in- 
