[ N D i; X 





Orthoptera, auditory organs of, ii. 



Ilariae, alum. lance in the ocean, i. 9 



Oscillataria, i. 54 



Oscillation of land, Darwin's views on, 



ii. 140 

 Os coccyx, as rudimentary organ, ii. 



37 

 Ostrea, i. 22 



l rich, modification of wings, i. 162 

 ( lutliers, plants as, ii. 8 

 Outlines of Costm ophy, Fiske's, 



»■ 333 

 Ovary, abnormal structure in orchid, 



ii. 304 



Owen, Sir Richard, biographical note, 

 i. 59 ; address at Leeds ( Hrit. Assoc, 

 1858) by, i. 17S; admission of 

 descent of species, i. 304 ; articles 

 by, i. 145, 146, 149, 152, 236, 237, 

 242, 246; on a badger of Pliocene age, 

 i. 244 ; on the brain, i. 238 ; ii. 341 ; 

 Mrs. Carlyle's impression of, i. 309; 

 and Hooker, i. 149 ; conduct towards 

 Huxley, i. 153 ; Darwin abused by, 

 i. 202 ; on Darwin and Maillet, 

 i. 280 ; and Darwinism, i. 226 ; on 

 ephemeral influence of the Origin, 

 i. 200 ; ii. 33S ; Falconer and, i. 

 210, 232; Huxley on, i. 136, 178; 

 on Huxley's election to the Athe- 

 naeum, i. 90 ; ignores Darwin's work, 

 i. 133 ; influence of. i. 201 ; isolation 

 among scientific men, i. 226, 227 ; 

 lecture on birds by, i. 203 ; letters 

 to, i. 59-61 ; letter to the AtAenaum, 

 i. 23S ; Life of, i. 226 ; on lowness 

 of animals, i. 413 ; on At 

 i. 206 ; on mammals of Old World, 

 i. 132, 133; on morphology of 

 vertebrata, i. 415 ; review in the 

 tarterly of the Origin, i. 145-7, 

 149 ; Paleontology by, i. 227 ; on 

 partbenogensis, i. 102 ; review in the 

 Edinburgh Review by, i. 196 ; on 

 simple and multiple organs, i. 415 ; 

 on use and disuse, i. 203 ; and Bishop 

 Wilberforce's review, i. 156: visits 

 Down, i. 65 ; attack on Darwin in his 

 Anatomy of Vertebrate^ ii. 377 ; atti- 

 tude towards Natural Selection, ii. 

 377 ; mentioned, i. 303 ; ii. 36, 156 



Owls and hawks, as agents in seed-dis- 

 persal, i. 440 



Oxa/is, bulbils of, ii. 34S ; cleistogamic 

 flowers of, ii. 30S, 317, 31S ; dimor- 

 phism of, ii. 351 ; pollen-tubes of, ii. 

 312 ; seeds of, ii. 355, 374; trimor- 

 phism of, ii. 299, 348. 349 ; 0. 

 acetosclla, sensitive leaves of, ii. 374; 

 variation in length of pistil and 



mens, ii. 354 ; ( - 

 win's work 



0. corniculata, variation of, i. 1 

 ii. 434 

 Oxford, meeting of the Bi c. at 



(1847), i. 156-8, 160, 17S ; ii. 218. 

 247; Tuckwell's reminiscences of, i. 



'57 

 ( txlips, i. 252 ; Darwin's experimei 

 cowslips, primroses, and, ii. 311 ; 

 Darwin on hybrid character of, ii. 

 - s 5> i" 2 ; scarcity of, ii. 372 



paniculata, Wallich on, 

 ii. 293 



Pachira. inequality of cotyledons, ii. 

 365 ; P. .-. ii. 365 



Pacific Ocean, Darwin wishes Hooker 

 to investigate floras of, i. 459 ; is! 

 of the, i. 134 ; coral reels of. ii. 194 



Packard's Lamarck the Founder of 

 Evolution, ii. 342 



Paget, Sir J., on regeneration, i. 

 363 ; address on elemental patho- 

 logy, ii. 425 ; illness of, ii. 106 : on 

 influence of mind on nutrition, ii. 

 106 ; Lectures on Surgical Patho- 

 logy, ii. 106 ; letters to, i. 425-7 : 

 mentioned, ii. 444 



Pairing, in birds, ii. 74 ; vigour of ; 

 and effect on time of, ii. 7 2 



Paleolithic flints, in gravels near 

 Southampton, ii. 166 



Paleontology, rapid progress of, ii. 13 

 ozoic period, ii. 121 



Paley, idea of interference of Creator 

 in construction of each species du<_ 

 i. 154 



Pall Ma//, article on "Dr. Hooker on 

 Religion and Science " in, i. 308, 309; 

 letter to editor of. i. 324 



Pallas, Darwin's conviction of truth of 

 doctrine of, i. 274 ; doctrine of, i. 

 on hybrids and fertility, i. 

 .). Malayan climbing, i. 



Palm, I. 11., work on climbing 1. 

 by, ii 

 na, crater of, ii. 127 



Pampas, geology of the, i. 27, 220: form- 

 ation o(, ii. 119 : Lyell n Mississippi 

 beds and, ii. 124 : D'Orbignv's th 

 of formation of, ii. 119; thistle of the, 

 ii. 23 



enesis, adverse opinion on, i. 

 Bentham on, i. 290 ; ii. 371 : Berkeley 

 on, i. 310 : bud-propagation and, 

 i. 2 1 1 larwin on, i. 3 



Darwin's • to term, i. 



2M : difference between Gal: 



