164 Review of Darwin’s Theory on the Origin of Species, 
“How could a savage possibly know, when he first tamed an anim¢l, 
whether it would vary in succeeding generations, and whether it would 
endure other climates? Has the little variability of the ass or guint 
east a score of pigeons might be chosen, which if shown to a 
ornithologist, and he were told that they were wild birds, wo 
certainly be ranked by him as well defined species. Moreover, 
“Ty havd discussed the probable origin of domestic pigeons at some, 
yet quite insufficient, length; because when I first kept a ger fally 
watched the several kinds, knowing well how true they bred, eee 
as much difficulty in believing that they could ever have descended 
@ common parent, as any naturalist could in coming to & —_ birds, 
ston in regard to many species of finches, or other large groups ° all the 
in nature. One circumstance has struck me much; namely, that 
breeders of the various domestic animals and the cultivators 0 
descended from so man aboriginally distinct species. Ask, a* 0) 
asked, a celebrated pet of Hereford cattle, whcthick his eattle might 
not have descended. long horns, and he will laugh you t0 pone 
not fallen net 4 Pigeon, or poultry, or duck, or rabbit fancier, ¥ pater 
t fully convinced that each main breed was descended from Snow ut : 
terly he dian Mons: in his treatise on pears and apples, shows bet 
Y he disbelieves that the several sorts, for instance a Ri 
