THE EVOLUTION OF LIVING BEINGS. I05 



Vol. I, p. 65. „There is now little doubt that our 

 „domesticated animal is descended from the Equus 

 „taeniopus of Abyssinia. 



Pigs. 



Darwin supposes our Pigs to have arisen from cros- 

 sing Sus indicus and Sus scrofa and says : 

 Vol. I, p. 74. „Seeing how different the Chinese pigs, 

 „belonging to the Sus indicus type, are in their os- 

 „teological characters and in external appearance 

 „from the pigs of the S. scrofa type, so that they 

 „must be considered specifically distinct,, it is a fact, 

 „well deserving attention, that Chinese and common 

 „pigs have repeatedly been crossed in various man- 

 „ners with unimpaired fertility". 



Cattle. 

 Vol. I, p. 82. „Domestic cattle are certainly descen- 

 dants of more than one wild form, in the same man- 

 ner as has been shown to be the case with our dogs 

 „and pigs." 



Sheep. 

 Vol. I, p. 97. „Most authors look at our domestic 

 „sheep as descended from several distinct species." 

 p. 98. „ Another ingenious observer though not a 

 „naturalist, with a bold defiance of everything known 

 „on geographical distribution, infers that the sheep 

 „of Great Brittain alone are the descendants of eleven 

 „endemic British forms ! Under such a hopeless state 

 „of doubt it would be useless for my purpose to give 

 „a detailed account of the several breeds." 



Goats. 

 Vol. I, p. 105. From the recent researches of M. 



