effects of disuse of parts in, ii. [298];
fed upon meat, ii. [304];
effect of first male upon the subsequent progeny of the female, i. 405;
homology of the leg and wing feathers in, ii. [323];
union of two outer toes in feather-legged, ibid.;
correlation of beak, limbs, tongue, and nostrils in, ii. [324];
analogous variation in, ii. [349]-[350];
permanence of breeds of, ii. [429].
Pigs, of Swiss lake-dwellings, i. 67-68;
types of, derived from Sus scrofa and Sus indica, i. 66-67;