. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 31.—Lower nippers of a ?five-year-old horse Fig. 32.—S^de view of the teeth of a five-year- old horse as they were when the colt was three years old. The cups have nearly or quite disappeared from the lateral or comer milk teeth, often nothing but a slight dark indentation being left. The tusks, if any, have enlarged, but are still sharp at the
. Annual report of the New York State College of Agriculture at Cornell University and the Agricultural Experiment Station. New York State College of Agriculture; Cornell University. Agricultural Experiment Station; Agriculture -- New York (State). Fig. 31.—Lower nippers of a ?five-year-old horse Fig. 32.—S^de view of the teeth of a five-year- old horse as they were when the colt was three years old. The cups have nearly or quite disappeared from the lateral or comer milk teeth, often nothing but a slight dark indentation being left. The tusks, if any, have enlarged, but are still sharp at their points and flat- tish on the inside. A side view of a four- year-old mouth is shown in Fig. 30. Note that the crowns of the two milk teeth, one upper and one lower, come together closely over their en- tire surface, while the two permanent teeth do not meet at their back comers. Five years old.—At the age of about four years and nine months, the permanent comer teeth make their appearance. Fig. 31. When full five years of age, the outer exterior parts of the teeth meet. Fig. 32, though almost one year of wear must take place before the lateral or comer teeth are worn level over their entire surface. At five years of age the horse has a full set of teeth, and the central teeth have two years' wear. They have also changed slightly in shape, having become rounder on the inside. The intermediate teeth show one year's wear. The cups show in all, but are deepest and freshest in appearance in the corner teeth. The tusks have enlarged, but are not yet blunt. Six years old.—At six years of age, the cups in the lower jaw have dis- appeared, or nearly so, from the central teeth, have become smaller in the inter- mediates, and the corner teeth are up and in full wear over their entire sur- FiG. ^4-—Side view of the face. Figs. 33, 34. 'Pig. Z2,.—Lower nippers of a teeth of a six-year-old Sometimes how- six-year-old horse horse ' ever, a horse has shelly teeth, in which case
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