83ê 



TABLE. 



Segregation in the second generation of hybrids after crossing of green with 



pure red-edged specimens. 



First generation 



Second generation 



Num- 

 ber 



red 



green 



Agrees with 

 the proportion 



Theoretically 



red j green 



(Gll-5)X(^13-4)/?l 



/?4 

 (/? 13-4) X(G 11-6) /?i 

 R2 

 (/? 4-7) X(G 11-5)/? 1 

 R2 

 R3 

 R4 

 R5 

 /?6 

 Rl 

 (R4-7)X(/?4-4green)/?l 

 R3 

 Rb 

 R6 

 Rl 



31 

 51 

 25 

 52 

 39 



222 

 23 

 18 



195 

 58 

 62 

 77 

 18 

 17 

 13 

 16 

 38 



14 



29 



12 



28 



21 



95 



10 



8 



83 



28 



45 



36 



7 



8 



9 



10 



18 



17 



22 



13 



24 



18 



127 



13 



10 



112 



30 



17 



41 



11 



9 



4 



6 



20 



27 : 37 



9 : 7 

 27 : 37? 



9 : 7 



9 : 7 

 27 : 37 

 27 : 37 

 27 : 37? 

 27 : 37 

 27 : 37 ? 



3 : 1 

 27 : 37 

 27 : 37 ? 

 27 : 37? 



3:1? 



9 : 7? 

 27 : 37? 



13.1 

 28.7 



29.25 



21.9 



93.6 



9.7 



82.3 

 24.5 

 46.5 

 32.5 



17.9 

 22.3 



22.75 

 17.1 

 128.3 

 13.3 



112.7 

 33.5 

 15.5 

 44.5 



as "green" as belonging to the category of those segregative as 3:1. 

 When the figures of these tliree groups are added, the agreement of 

 the totals with the figures is, I think, complete : 



Nature 

 of segregation 



According to 3 : 1 

 9:7 

 27 : 37 



Found 



red j green 



54 



319 



21 



70 

 403 



Calculated 



red I green 



56.25 18.75 



88.9 

 304.6 



69.1 

 417.4 



Parents which have a hybrid nature for three factors, can there- 

 fore distribute these three factors to their off-spring in different ways 



