402 DIGESTIVE SYSTEM OF THE HORSE 
The first five have two roots, while the sixth commonly has three. The width of the 
lower molars is a little more than half that of the upper. 
The structure is quite complex. Two infundibula run vertically through the 
is indicated 
one 
TEETH. 
SKULL OF Two-YEAR-OLD Cout, ScuLPTURED TO SHOW THE EMBEDDED PARTS OF THE 
347. 
Fie 
entire length of the crown; these become filled with cement. In the upper teeth 
there are five main divisions of the pulp-cavity and five enamel folds, four of which 
are arranged symmetrically, while the fifth is an outgrowth from the antero-medial 
fold. In the lower teeth the infundibula are open along the lingual surface until 
