Pictet, Prof. F.J., reviews the "Origin of Species," i. 141, 144
Pigeons, domestic, i. 130
"—— of the Malay Archipelago," Wallace's, i. 166, ii. [4]
"Plants, Crossing," Darwin's, Wallace on, i. 296-7
—— geographical distribution of, i. 94;
effect of climatic conditions on, 130;
heterostyled, 298;
migration of, 307 (note), 310, 311-12, 313-14, ii. [32], [34]-5;
[pg 282] Lyell on migration of, [19]-20;
variety of form and habit in, [54]
"Plants of India and Indo-Oceanic Continent," Blandford's, i. 290
Pleistocene Period, i. 308
Pliocene Period, i. 292, 294, ii. [22]
Podmore, Frank, effect on, of Hodgson's Psychical Research report, ii. [203];
report by, in Proceedings of Psychical Research Society, [204];
proposed as President, [211]
Polymorphism, Wallace on, i. 168