Count as the Differences Are Between the Breeds of Pigeons

I am fully convinced that the common opinion of naturalists is correct, namely that all have descended from Columba Livia. I do not believe that any ornithologist would place the English carrier, the short-faced tumbler, the runt, the barb, powder and fan-tail in the same genus. In each of these breeds several truly inherited sub-braids or species as he might have called them, could be shown him. Count as the differences are between the breeds of pigeons. For it is impossible to make the present domestic breeds by the crossing of any lesser number. The supposed aboriginal stocks must all have been rock pigeons, that is, not breeding or