1004 



CYCLOPEDIA OF LIVE STOCK AND COMPLETE STOCK DOCTOR. 



or perforated plate of the ethmoid bone. 12 — ^The lower cell of tbe 

 ethmoid bone. 13 — ^The superior turbinated bone. 14 — ^The inferior 

 turbinated bone. 17 — The sphenoid bone. 



V. Dentition of Sheep. 

 Youatt gives as follows the dentition of sheep, oy which it 

 will be easy to tell the age correctly: The sheep has eight 

 incisors in the lower jaw, and twelve grinders — six on a side 

 in each jaw, — making in all thirty-two teeth. At birth the 

 lamb should have the two central incisors just pushing through. At a 

 month old all the incisors should be up. At one year, sometimes not 

 uitil fifteen months old, the two first milk incisors will be shed, and two 

 new or permanent ones will appear. At two years old past, it will have 

 two more permanent teeth, or four in all. At three years old past, it 

 will have six permanent incisors, and at four years old past, the eight 

 permanent teeth, or a full mouth, as it is called, will be shown. This 

 will be an accurate test as to the age of sheep, up to four years, varied of 

 course, by care and keep ; highly fed sheep developing faster than ill 

 kept ones. At six the incisors begin to decrease in breadth, and lose 

 their fan shape, as seen at four years old. At seven they become longer 

 and narrower, and each year this shrinkage continues, until at last they 

 become quite slender, the middle ones long, and at ten years they loosen 

 and begin to drop out. 



VI. Points ot Sheep Explained. 

 To locate the different exterior portions of the sheep, we give a cut of 

 one of the half-wild breeds of the animal, which seems goat-like, but the 

 vvool of which shows it to be a sheep. 



EX l-ERIOR POINTS OP SHEEP. 



Explanation.— <i--I'^-^. ^—Muzzle. C— Neck. />— Shoulder. Ji 

 Shooider. i?'— Breast. 65— Girth-place. ^— Bact. i 

 ilZ-sHin. iT— Boot of Tail. 



