Powis, Lord, experiments in crossing humped and English cattle, i. 83, ii. [45].

Poynter, Mr., on a graft-hybrid rose, i. 396.

Prairie wolf, i. 22.

Precocity of highly-improved breeds, ii. [321].

Prepotency of pollen, ii. [187].

Prepotency of transmission of character, ii. [65], [174];

in the Austrian emperors and some Roman families, ii. [65];

in cattle, ii. [65]-[66];

in sheep, ii. [66];

in cats, ibid.;