PHASES IN THE LIFE OF THE INDIVIDUAL 711 



Live 

 Weight 

 (Ib.) 

 175 



150 

 125 

 100 

 75 

 60 

 25 



30 35 



J [_ 



40 45 

 I I 



50 55 weeks 

 I I 



FIG. 181. Growth of sheep. (From Alan Murray, Jour, of Agric. Science.) 



Curve 1, Suffolk sheep (males, single). 

 2, (females, single). 



3, Shropshire + Merino sheep (males, single). 

 4, (females, single). 



5, ( twins). 



The weights actually observed are indicated by for the Suffolk, and 

 for the Shrop.-Merino sheep. 



Increase 

 (kg) 



FIG. 182. C4rowth of girls (A) and boys (B) ; increase kg. per annum. Prior to 

 the tenth year the rate of growth of the two sexes is represented by the 

 same line. (From Alan Murray, Jour, of Agric. Science.) 



