102 THE BOTANICAL MAGAZINE. [Vol. xxxn. No. 377. 



they coincide very well and the development of hard pod is 

 doubtless clue to two complementary factors as far as the 

 experiment goes. 



By the way let us combine the factors for pigment (see 

 table II) with those for hard pod then we shall obtain the 

 following results : — 



(DDLL + 2DDL1 + 2DLLd + 2DLdl) (PP + 2Pp) = 

 DDLLPP + 2DDL1PP + 2DLLdPP + 4DLPPdl + 

 2DDLLPp + 4DDLlPp + 4DLLdPp + 8DLdlPp 

 In this equation the first term of the right hand side is homozy- 

 gous for hard pod as well as for pigment, the second and third 

 terms are heterozygous as splitting into 3 : 1 ratio for hard 

 pod and homozj'gous for pigment and the fourth term is 

 heterozygous as splitting into 9 : 7 ratio for hard pod but 

 homozj r gous for pigment, the fifth term is homozygous for hard 

 pod but heterozygous as splitting into 3 : 1 for pigment, the 

 sixth and seventh terms are heterozygous as splitting into 3 : 1 

 for hard pod and also heterozygous as splitting into 3 : 1 for 

 pigment and the last term is heterozygous as splitting into 

 9 : 7 for hard pod and also heterozygous as splitting into 3 : 1 

 for pigment and all of these combinations are also made out 

 by (1 Horn. + 2 Het.) (1 Horn. + 4 Het. + 4 Het.). 



If we actually count these numbers in the table II we get the 

 above mentioned combinations in the ratio 2:9: 12:3 :13 :18 15 

 respectively and we can see how the actual numbers coincide 

 well with the expected ones as far as only hard pod and 

 pigmented flowers or seeds are concerned. 



The next thing to be done is to investigate what are the 

 L and D in the zygotic composition and what is the relation 

 between the texture and factors. The investigation as to these 

 matters is now under way and I hope to be able to make 

 public the result whatever may it be. 



1) Actual ratio is nearly twice as large as expected one. 



