R C. Pdnnktt and tiik latk P. G. Bailky 



13 



g«nenitioii8 is shitwn in Fig. 11. No n-conlH wen? kept «»f the nuiturity 

 age of the mixe<1 Htniin which wa« uh<'<I. X 17 ami X I!) hml their finit 

 littt^re at 11 and 10 months reH|H»otively, while other tUns in the saine 

 strain first littered at 9-11 uionthn. The avenige maturity age of the 

 strain was prolwibly 2-iJ moiithH earlier than that of th«' Flrmish. Th«* 

 Fi luiimals are notably later in maturing than those from the Kli'inish- 

 Polish cnws, though three uf them wen* distinctly in iwlvancc; of the n-st. 



9 

 7.6 



10 



11 12 13 

 7.15 6.14 



14 



I { I I 



8 

 7.5 



9 10 11 12 13 14 

 6.3 7.2 6.15 6.8 712 6.10 



9 10 11 12 

 5.81^ 5.0 5.8 5.14 



13 



14 



Fig. 11. Shewing distribution of weight in relati«»n to age 

 of maturity in Fi, F-,, and F3aniinalg of Flemish-mixed 

 cross. (Cf. Tables II— IV, pp. 22—24.) 



The Fi generation, which w;is raised from among the later maturing (»t 

 the Fi animals, shews considerable scatter, maturity in some c<ises being 

 attained as early ;vs 8 months, while in others it is fully jus lat<' as in 

 the Flemish (cf. Fig. 11). The curve appears to be a bimodal one, but 

 the small numbers and the necessarily rough method of classiHwition 



