PHASES IN THE LIFE OF THE INDIVIDUAL 711 



Fig. 181. — Growth of sheep. (From Alan Murray, Jow. of Agric. Scietice.) 



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. 



Fia. 182. — Growth 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, Jonr. of Agrir, Science.) 



