Wing-feathers, number of, in pigeons, i. 159;
variability of, in fowls, i. 258.
Wolf, recent existence of, in Ireland, i. 16;
barking of young, i. 27;
hybrids of, with the dog, i. 32.
Wolf-dog, black, of Florida, i. 22.
Wolves, North American, their resemblance to dogs of the same region, i. 21-22;
burrowing of, i. 27.
Woodbury, Mr., crossing of the Ligurian and common hive bees, i. 299, ii. [126];
variability of bees, i. 298.