H. Onslow 



131 



S, 100 



?J 90- , V ~x 



CL| 70 



K VIS F9Q'. 

 jl8 AQQ -^i 



-X- -K " 



•18 C0rj 



■■;i8 F ccr 



1 



iii8 c 99 



Parent of '18 A 



Parent of "18 C 



Parent of '18 F 

 Parent of '18 A 



Parent of '18 C 



No. of Iimects 

 Text-fig. 3 (cf. Text-fig. 4). Curves showing the distribution of the values of the 

 black pattern in ^ ^Jand ? $ from three families of grossulariata x grossu- 

 /ari«te ('18 A, C, F). They carry the factor, I, leading to an increase 

 01 the black pattern which aflfects ^ ^ more than 9 9 , but not the factor 

 lor varleyata. 



a, 20 



'18 A,C. F. 99 



'18 AC FvCTO 



Percentage of Black 

 Text-fig, 4 (cf.Text-fig. 3). Diagram showing the frequency distribution of the values 

 tor the black pattern of the ^ ^ and the ? ? in the three families of Text-fig. 3. 

 Journ. of Gen, xi g 



