on a variety of the goose from Sebastopol, i. 289;
on the fertility of the peahen, ii. [112];
on the intercrossing of bees, ii. [126].
Temminck, origin of domestic cats, i. 43;
origin of domestic pigeons, i. 180;
on Columba guinea, i. 182;
on Columba leucocephala, i. 183;
asserted reluctance of some breeds of pigeons to cross, i. 192;
sterility of hybrid turtle-doves, i. 193;
variations of Gallus bankiva, i. 235;