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himself on the prairies. At a year and a half the 

 fifth molar, permanent, begins to appear, and at 

 2 years is on a level with the other molars. At 2 

 years the cutting teeth show signs of wear. From 

 the second to third years is the time when horses 

 may experience some trouble with their teeth, 

 and many horses become thin and lank until they 

 reach the fifth year. The temporary teeth begin 

 to loosen and are shoved out by the permanent 

 teeth underneath pushing forward. The gums 

 get sore and congested at times. At 2 1-2 years 

 the permanent teeth are pushed out and are 

 recognized, being much wider and having deep 

 grooves in the rear border. At this time the for- 

 ward border of the teeth has not shown any wear, 

 but three to six months later the surfaces begin 

 to come togpther when chewing wears the front 

 portion of the flat surfaces of the teeth. At 4 

 years the rear edges also begin to show wear. At 

 2 1-2 years the first and second temporary grind- 

 ing teeth are shed and the permanent ones ap- 

 pear. From the third to fourth year the lateral 

 cutting teeth, incisors, come to show like the cen- 

 tral ones. During this time the third molar ap- 

 pears, that is, the permanent third molar. Be- 

 tween the fourth and fifth years the horse suffers 

 most from teething, as during this time the horse 

 is cutting four permanent incisors, four canines 

 and eight molars, making sixteen teeth which are 

 growing at one time, and often the horse cannot 

 thoroughly chew corn, hay or oats. At the end 

 of the fifth year the horse has its full set of teeth, 

 and from then on we must judge the age of the 

 horse by the various factors enumerated at the 

 beginning of this article. 



At 6 years the central cutting teeth have the 

 cavities showing, but the edges show the central 



