DI^NTITION AND D1£T. 



129 



occasionally), the front nippers in the ui)per and lower jaw makd 

 their appearance, and, during the period, which occurs between 

 the third and fifth week= c^-C ludcle incicors appear. Between the 

 Beventh and ninth lUv^ufcL the lUteial or corner teeth are cut. The 



Fi?. 7. 



Fig. 8 



C 



IS^ 



SEVFV YEAKS OLO. 



EIGHT lEAltS OLD. 



colt is now in possession of a full set of temporary incisors. These 

 temporary, or " milk " teeth, diifer from the permanent ones by 

 being much smaller and (previous to shedding) whiter, having on 

 their anterior ov front surfaces grooves or furrows; also a well- 

 defined body, neck, and slender fang. They also present oval 

 surfaces anterior ily, or in front; and within the mouth they are 

 concave. Their surfaces are generally uniform and smooth, and 

 resemble the eye of an English horse-bean. 



Fig. 9, 



BOBIZONTAL VIKW Or OlD BLACK HAWK'S I.NCI80B8 A.ND TCeBES. 



The Permanent Teeth. — Constitutional idiosyncrasies are 

 often operative in hastening or retarding dentition, and the char- 

 acter of the food, whether it be natural or artificial; and thfl 



