564 MANUAL OF MODERN FARRIERY 



causes the teeth to appear earlier or later in the 

 mouth, and in a flock of well-bred and well-fed 

 sheep, the teeth generally appear in the following; 

 order of time : — 



At birth, or by the seventh day, the lamb has 4 incisors, 

 „ „ tenth „ 2 



,, „ thirtieth „ 2 ,, 



Temporary incisors, 8 



At three weeks the ist, 2nd, and 3rd temporary molars on 

 each side and in both jawbones appear. 



At three months the 4th molars appear, but they are per- 

 manent and not sucking teeth. 



At nine months the 5th molars (also permanent) appear. 



At one year to one and a quarter the 2 central temporary 

 incisor teeth are thrown off and replaced by the 2 central per- 

 manent. 



At one and a half year to one and three-quarters, the 2 

 middle temporary incisors are thrown off and replaced by the 

 2 middle permanent. 



At one and a half year the 6th molar (permanent) appears. 



At two years the ist, 2nd, and 3rd temporary molars are 

 thrown off and replaced by the ist, 2nd, and 3rd permanent 

 molars. 



At two and a quarter years to two and a half years the 2 

 lateral temporar}- incisors are thrown off and replaced by the 2 

 lateral permanent incisors. 



At three years to three and a quarter the 2 corner temporary 

 incisors are thrown off and replaced by the 2 corner permanent 

 incisors. The permanent teeth of sheep are easily distinguished 

 from the temporary or sucking, by being double their size. See 

 Plate XIV, figs. 3, 4, and 5. 



