28 ON" THE KNOW LEDGE 



to lead the drain from the yard, to land under culti- 

 vation, or into a ditch, where manure is collected, 

 to be occasionally taken away. 



CHAPTER IV. 



ON THE KNOWLEDGE AND CHOICE OF SHEEP. 



Q. W"HAT are the principal differences to be ob- 

 served in sheep ? 



A. Sheep differ from each other in sex, age, size, 

 and in the quality of their wool and flesh. 



Q. How is their age ascertained ? 



A. By the front teeth of the under jaw ; they have 

 eight, of which all appear the first year, and are called 

 lambs' teeth, and are not broad, but pointed. 



In the second year, the two middle ones fall, and 

 are replaced by two new ones, which are easily dis- 

 tinguished by their breadth, and which are much 

 longer than the six others : during this second year, 

 the ram, ewe, and wethers, have the name of year- 

 lings. 



In the third year, two other pointed teeth, one on 

 each side of the middle, are replaced by two large 

 teeth ; so that there are four large teeth in the middle, 

 and two pointed on each side. 



In the fourth year, there are six large teeth, and 

 there remain only two pointed, one on each side of 

 the range. 



In the fifth year, there are no more pointed teeth, 

 being all replaced by broad teeth. The age of sheep. 



