Dobell, H., inheritance of anomalies of the extremities, ii. [14];
non-reversion to a malformation, ii. [36].
Dobrizhoffer, abhorrence of incest by the Abipones, ii. [123].
Dogs, origin of, i. 15;
ancient breeds of, i. 17, ii. [429];
of neolithic, bronze and iron periods in Europe, i. 18-19, ii. [427];
resemblance of to various species of canidæ, i. 21;
of North America compared with wolves, i. 21-22;
of the West Indies, South America, and Mexico, i. 23, 31;
of Guiana, i. 23;