84 EQUINE ANATOMY. 



alveolar dental periosteum lines the cavity of tlie alve- 

 olus and the external face of the cement of the fang. 

 Development : the dental follicle, or a membrane con- 

 taining at its bottom the dental pulp and having in its 

 upper part the enamel germ, attached to the guber- 

 naculum dentis. Considering their epoch of develop- 

 ment, teeth are divided into caducous, temporary or 

 milk, and replacing or persistent teeth. 



Incisors. — Six in each jaw. Divided into pincers, 

 middle teeth or nippers, intermediate or dividers, and 

 corners. The superior surface exhibits the external 

 dental cavity which, when worn, shows the central and 

 surrounding enamels ; and in older animals the dental 

 star; and lattei) the >5Lternal dental cavity, obliterated. 



Canines or tusks. — Two in number, are found, in 

 solipeds, in males only : they seldom are shed, and 

 grow but once. 



Molars. — Twelve on each jaw; six on each side. 

 The surface of these teeth is inclined from inwards 

 outwards for the lower jaw, and vice versa for the 

 upper one. They present the aspect of a grinding 

 surface, made irregular by the arrangement and pro- 

 jection of the enamel. The first three molars are 

 caducous. "s::^^^^^^^^^«2E^5^i<sd5!>»^^^^ 



Eye. — Organ of sight, is composed of accessory and 

 essential organs. c^4,^^i?g<I^ 



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