Wright, Strethill, on the development of the hydroida, ii. [368].
Wyman, Dr., on Niata cattle, and on a similar malformation in the codfish, i. 89;
on Virginian pigs, ii. [227].
Xenophon, on the colours of hunting dogs, ii. [209].
Ximenes, Cardinal, regulations for the selection of rams, ii. [204].
"Yahoo," the name of the pigeon in Persia, i. 155.
Yaks, domestication of, i. 82;
selection of white-tailed, ii. [206], [209].
Yam, development of axillary bulbs in the, ii. [169].
Yarrell, Mr., deficiency of teeth in hairless dogs, i. 34, ii. [326];