ERRATUM. 



Yol. 61, p. 410. 



In the memoir read June 3, 1897, entitled " The average Contribution of each 

 several Ancestor to the total Heritage of the Offspring" the words sire and dam 

 have been accidentally transposed in Table II, and consequently, in the deduction 

 therefrom at the bottom of page 401, the latter should be that, in the present case, 

 the sire is more potent in transmitting colour than the dam, in the ratio of 6 to 5. 

 This error does not affect the general conclusions of the memoir, because the ratio 

 of 6 to 5 was treated as an insignificant disproportion, and the two sexes were 

 dealt with on equal terms. 



Feancis G-alton. 



