of the Animals of the Farm. 



47 



At one ijear old the teeth will present the following ap- 

 pearances. Incisors are worn on their upper surfaces, especially 

 the central and middle, and to some extent the lateral teeth ; 

 the corners are not worn. In sheep which are feeding on 

 turnips, some of the incisors, and in certain cases all of them, 



Fig. 44. — Incisors {temporary) of Sheep at one year. 



iare broken off, and in very forward animals the central perma- 

 nent incisors are cut, but they are never perfectly level and 

 regular at this age. 



Fig. 44 shows the average state of the temporary incisors in 

 a well-preserved mouth at the age of one year. At the back of 



Pig. 45. — Incisors of Sheejy, central permanent Incisors well u]^, 



at fifteen months. 



'the mouth the recently cut fifth permanent molar is seen, while 

 the teeth in front of it are all worn on the surfaces ; these ap- 

 pearances, taken in connection with the state of the incisors, will 

 satisfy the examiner that the sheep is about the age of one year. 

 The first broad teeth, central incisors, are usually cut soon 



