2 to 4 Years 

 <Tl. _.4'/2 to 5 Years 



Sketch of the permanent incisors, indicating the order in which they 

 appear in pairs. The central pair of permanent incisors in both the 

 upper and lower jaws apear when the horse is about two and one-half 

 or three years of age, the next pair replace the temporary incisors 

 when the horse is about four years of age, and the outside pair, mak- 

 ing a full mouth, usually appear at five years of age. 



FIVE YEARS 



LOWER INCISORS 



Six YEARS 



LOWER INCISORS 



SEVEN YEARS EIGHT YEARS 



LOWER INCISORS L WER |NC ' SO ^ 



At live years it will be noticed t.hat the marks are very distinct and 

 the tables worn but slightly in all of the incisors. At six years tin- 

 center pair in the lower jaw show some wear, the mark becoming 

 smaller. At seven years the second pair have nearly lost their marks, 

 while at eight the third or outside pair show considerable wear with 

 but a trace of the mark. 



