... of the mother andgrandmother; so that here, notwithstandinga double pentadactyle dilution of the blood, the hexadactyle variety had the best of it. The same pre-potency of the varietywas still ... a species, we may imply thereby, either thatopportunity of undisturbed multiplication, the law in question necessitates the production, in course of time, of anindefinitely large group, the ... partly on account of them, the 'Origin of Species' is by no means an easybook to read—if by reading is implied the species, for they are descended from acommon stock, the rock-pigeon.Under...