81 

 exhibited is so peculiar to the age, and so decided in 

 its indications, that it can hardly be mistaken. One 

 of the lateral milk teeth from the lower jaw has been 

 recently lost. The gum is sore, and the top of the 

 permanent incisor is seen rising up. By comparing 

 the temporary incisor, which is speedily to fall from 

 the upper jaw, with those representations of the same 

 teeth given in the previous plates, the gum will be 

 observed to have considerably retracted. Preparation 

 is evidently being made for the change which will in 

 a few weeks take place. The milk teeth begin to 

 be shed about the seventh or eighth month after 

 the completion of the third year, those in the lower 

 jaw being the first to quit the mouth ; and all that 

 was observed on the subject in the former paragraph, 

 may be applied to the present, only making allow- 

 ance for the differences of position in the teeth. 



44. When rising four years old the lateral horse 

 teeth are in the 7nouth, but their edges do not fairly 

 meet. The coloured engraving of this age will 

 denote the altered aspect of the mouth, consequent 

 upon the development of a few mondis, when the 

 colt may want only a dozen weeks for the completion 



