Yew, fastigate, ii. [241].
Yew, Irish, hardy in New York, ii. [309].
Yew, weeping, i. 361;
propagation of, by seed, ii. [18]-[19].
Yolk, variations of, in the eggs of ducks, i. 281.
Youatt, Mr., history of the dog, i. 16-17;
variations of the pulse in breeds of dogs, i. 35;
liability to disease in dogs, i. 35, ii. [227];
inheritance of goître in dogs, ii. [10];
on the greyhound, i. 34, 41;