INFLUENCE OF A PREVIOUS IMPREGNATION. 259 



faced, with very small horns, and three were white- 

 faced showing the partial influence of the cross even 

 to the third year." 1 



" A small flock of ewes belonging to Dr. W. Wells, 

 in the island of Grenada, were served by a ram pro- 

 cured for the purpose the ewes were all white and 

 woolly; the ram was quite different of a chocolate 

 color, and hairy, like a goat. The progeny were of 

 course crosses, but bore a strong resemblance to the 

 male parent. The next season Dr. Wells obtained a 

 ram of precisely the same breed as the ewes, but the 

 progeny showed distinct marks of resemblance to the 

 former ram in color and covering. 



" The same thing occurred on neighboring estates 

 under like circumstances." a 



Mr. Darwin cites the following case from the 

 "Philosophical Transactions," 1821: "Mr. Giles put 

 a sow of Lord Western's black-and-white Essex breed 

 to a wild-boar of a deep chestnut-color, and the ' pigs 

 produced partook in appearance of both boar and sow, 

 but in some the chestnut-color of the boar strongly 

 prevailed.' After the boar had long been dead the 

 sow was put to a boar of her own black-and-white 

 breed a kind which is well known to breed very 

 true, and never to show any chestnut-color yet from 

 this union the sow produced some young pigs which 

 were plainly marked with the same chestnut-tint as in 

 the first litter." 8 



F. Sherman, of Ash Grove Farm, Fairfax County, 



1 Farmer's Magazine, vol. xxxv., p. 130. 



2 "Principles of Breeding," by Goodale, p. 49. 



8 " Animals and Plants under Domestication," vol. i., p. 485. 



