410 Dr. F. Galton. The .average Contribution of each 



Table II. — Offspring of one parent Tricolour (T) and of one Non- 

 tricolour (N). The sex of the parents is not regarded. 







Observed. 



[ 



Per cents. 



. From Table I. 



Tricolour. 



Non- 

 tricolour. 





Tricolour. 



Non- 

 tricolour. 



1 



Sire T, dam N 



A 

 B 



114 

 30 



109 

 64 



223 

 94 



51 

 32 



49 

 68 





Sum 



144 



173 



317 



45 



55 







Dam T, sire N 



A 

 B 



25 

 15 



i? 



43 

 32 



58 

 47 



42 

 53 









Sum 



40 



35 



75 



54 



46 



Table III. — Distribution of T and 1ST colour in Parents, when the 

 Offspring are T and N respectively. 



Prom Table I. 



No. of T offspring. 



Parents* of T offspring. 



Sires. 



Dams. 



A. 



B. 



Total. 



T. 



N. 



T 



T 



239 



87 



326 



652 







T 





25 



15 



40 



40 



40 





T 



114 



30 



144 



144 



144 





N 



9 



11 



20 







40 



Totals 



530 



836 



224 





50 



79 



21 



From Table I. 



No. of N offspring. 



1 



! Parents* of N ofLspring. 















Sires. 



Dams. 



A. 



• 



B. 



Total. 



1- . 



T. 



N. 



T 



T 



38 



20 



58 



116 







T 



N 



18 



17 



35 



35 



35 



3S 



T 



109 



64 



173 



173 



173 



N 



N 



15 



6 



21 







42 









287 



324 



250 



Per cent, of Parents* 





50 



56 



44 



* More properly " Parental Places " ; the number of these, though not that of 

 the individual parents, being always double the number of any group of offspring. 



