Norman, Dr., and Wallace, ii. 137 Norris, Dr. Richard, i. 244, ii. 136 ---- Miss, ii. 136 "Norwegian Flora, Immigration of," Blytt's, i. 293 O Oceanic islands, colonisation of, i. 132, 133, 138, 290; flora of, 210-212, 305 Onomatopoeia, ii. 66 Orang-utans, i. 53, 56, 57, ii. 30 "Orchids," Darwin's, i. 143, 297 ---- Wallace's admiration of, i. 23, ii. 114; epiphytal, i. 23; of the Azores, 311 "Origin of Species," Darwin's, i. 67, 72, 76-8, 112, 121, 124, 125, 129, 134, 136, 139, 141, 146, 164, 174, 176, 224, 240, 241, 244, 246, 264-5, 271, ii. 1, 2, 77; reviews of, i. 142, 144 ---- ---- (_see_ Selection) "---- ---- and Genera," Wallace's, i. 304 "---- of the Fittest," Cope's, ii. 47 "---- of the Races of Man," Wallace's, ii. 18 Ornithoptera croesus, i. 41 ---- poseidon, i. 42 Orr, Henry B., ii. 60 Osborn, Prof. H.F., on Wallace, ii. 239 Ostriches, Wallace on, i. 145; Darwin on, 146-7 Owen, Sir R., Darwin's opinion of, i. 139; attacks Darwin's theory, 142, 144, 157, 199 ---- Robert, and Wallace, i. 15, ii. 139, 148, 182, 225 ---- Robert Dale, ii. 225 P Pacific Islands, land shells in, i. 133 Pain, Wallace on, ii. 244 Pangenesis, i. 196 _et seq._, 219, 220, 276, ii. 102 Panmixia, ii. 52, 53 Papilio, polymorphic species of, i. 168 ---- sarpedon choredon, i. 316 "Papilionidae of the Malay Region," Wallace's, i. 153, ii. 4, 6, 231 Para, Wallace at, i. 26, 29; products of, 27 Parrots, Wallace's paper on, i. 160, ii. 4 "Passerine Birds," Wallace's, ii. 231 Pastrana, Julia, i. 181 Patagonia, plains of, i. 32 "Permanence of Oceanic Basins," Wallace's, ii. 74 Permian period, i. 290 Perry, John, and Wallace national memorial, ii. 253 "Personal Narrative," Humboldt's, i. 17, 164, 238 Pheasants, Argus, i. 230, 289, 292 "Phenomena of Variation and Geographical Distribution," Wallace's, i. 153 Phillips' attack on Darwin's "Origin of Species," i. 142 Phrenology, Wallace's belief in, i. 24, ii. 237 "Physical Geography of the Malay Archipelago," Wallace's, ii. 232 "---- History of Man," Prichard's, i. 91, 116, ii. 73 "Physics of the Earth's Crust," Fisher's, ii. 74 Physiological selection (_see_ Selection, physiological) Pickard-Cambridge, Rev. O., reminiscences of Wallace, ii. 131 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; 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