H. ()nsu)W 



237 



very sniall ono. A« bt^fort\ Fign. 10, 11 and 12 have \kvi\ ccunbined and 

 the result is shown in Fi>;. \'X 



Colour-units 



•3:1-1] [1-5: 1-4] 

 Colour-values of 

 hybrid parents 



Fig. 11. (Cf. Fig. 23.) Curve showing frequency distribution of the orange and yellow 

 ooloar-valaes of family '17 E, hybrid {luUa x gross.) x hybrid (liitea x gross.). 



>.'6 

 o 



c 



3 



© 12 



4-* 







[0-9: 0-4] [1-0: 0-6] 



Colour-values of 



hybrid parents 



4 Coloup-units 



Fig. 12. (Cf. Fig. 24.) Curve showing frequency distribution of the orange 

 and yellow colour-values of family '16 G, hybrid {littea x gross.) x hybrid 

 {lutea X gross.). 



The essential features are the same as in Fig. 10, but the curve, 

 especially in the yellow region, tends to oscillate more. This is because 

 the points on the curve have been taken rather closer together than 



