INDEX 



499 



criticism on the Origin by, i. 239 ; 

 letters to, i. 239 ; ii. 302-32 ; on 

 Natural Selection, i. 221 ; on a red 

 cowslip, i. 252 ; confirms Darwin's 

 work, also points out error, ii. 302-6 ; 

 Darwin assists financially, ii. 327, 

 331 ; Darwin's opinion of, ii. 302, 

 331 ; Darwin offers to present books 

 to, ii. 311 ; Darwin writes to Hooker 

 about Indian appointment for, ii. 319 ; 

 Darwin's proposal that he should 

 work at Down as his assistant, ii. 

 329, 330 ; Darwin suggests that he 

 should work at Kew, ii. 329 ; on 

 dispersal of seed of Adenanthera by 

 parrots, ii. 349 ; on fertilisation of 

 Acropera, ii. 302-10, 312, 316, 318, 

 3 2 5> 336, 337 5 a good observer and 

 experimentalist, ii. 309 ; a lover of 

 Natural History, ii. 314 ; observa- 

 tions on acclimatisation of seeds, ii. 3 ; 

 on Onddiiun flexuosum, ii. 351 ; 

 letter to Darwin from, ii. 302-6 ; 

 offered associateship of Linnean 

 Society, ii. 326 ; on Imatophylhun, 

 ii. 313 ; on self-sterility in Passiflora, 

 ii. 314 ; on Primula^ ii. 325 ; on 

 sexes in Zea, ii. 308 ; mentioned, ii. 



299, 378 



Scrope, P., on volcanic rocks, n. 125 



Scrophularinea?, i. 108, 163 



Scudder, on fossil insects, ii. 82 



Sea, Dana underestimates power of, ii. 

 226 ; changes in level of land due to 

 those of, ii. 167 ; marks left on land 

 by action of, ii. 176 



Seakale, bloom on, ii. 411 



Seashore plants, use of bloom on, ii. 

 409, 411 



Sea-sickness, Darwin suffers from, i. 

 10, 247 



Seasons with the Sea Horses, Lament s, 

 i. 179 



Secondary period, abundance of Arau- 

 carias and Marsupials during, i. 453 ; 

 equality of elevation in British rocks 

 of, ii. 189 ; insects prior to, ii. 27 



Sections of earth's crust, need for 

 accurate, ii. 133 



Sedgwick, Prof. A., extract from letter 

 to Owen from, i. 146 ; letter to 

 Darwin from, i. 136; ii. 236, 237; 

 on the Vestiges of Creation, i. 48, 49 ; 

 and the Philosophical Society's meet- 

 ing at Cambridge, i. 149 ; and the 

 Spectator^ i. 149 ; Darwin's visit to, 

 ii. 236, 237 ; feelings towards Darwin, 

 ii. 236, 237 ; on the structure of large 

 mineral masses, ii. 200, 202 ; pro- 

 poses Forbes for Royal medal, ii. 



131 ; quotation from letter to Darwin 

 from, i. 130 ; suggested as candidate 

 for Royal medal, ii. 231 ; mentioned, 

 i. 91, 123, 124, 133, 389; ii. 231 

 Sedgwick, A., address at the British 



Assoc. (1899), i- 2I 4 

 Sedimentary strata, conversion into 



schists, ii. 206 



Sedimentation, connection with eleva- 

 tion and subsidence, ii. 123, 124, 

 147 ; near coast-lines, ii. 146 

 Seedlings, sensitiveness to light, ii. 431 

 Seeds, collected by girls in Prof. Hens- 

 low's parish, i. 419, 420 ; dispersal 

 of, i. 144, 416, 419, 483 ; ii. 4, 5, 

 24, 25, 338, 349, 387 ; effect of 

 immersion on, i. 148, 416, 417, 419, 

 436, 437, 483 ; ii. 5 ; of furze, i. 148 ; 

 Asa Gray on Darwin's salt-water 

 experiments, i. 422 ; germination 

 after 2i|- hours in owl's stomach, i. 

 440 ; moss-roses raised from, i. 276, 

 279 ; peaches from, i. 279; variation 

 in, i. 213 ; bright colours of fruits 

 and, ii. 347, 348 ; difficulty of finding 

 in samples of earth, ii. 247 ; dormant 

 state of, ii. 245, 246 ; germination 

 from pond mud, ii. 251 ; Hildebrand 

 on dispersal of, ii. 387 ; mucus 

 emitted by, ii. 430 ; stored by ants, 

 ii. 389-91 ; supposed vivification of 

 fossil, ii. 244 ; vitality of, ii. 243-7, 

 251 



Seeley, Prof., n. 442 

 Seemann, on commingling of temperate 

 and tropical plants in mountains of 

 Panama, i. 473 ; on the Origin in 

 Germany, i. 476 ; mentioned, ii. 9 

 Segregation of minerals in foliated 



rocks, ii. 204, 205 



Selaginella, foot of, compared with 

 organ in Welwitschia seedling, ii. 

 427, 428 



Selection, a misleading term, i. 161 ; 

 artificial, i. 120, 128, 164, 208, 367, 

 368 ; as means of improving breeds, 

 i. 193 ; importance of, i. 152 ; in- 

 fluence of speedy, i. 354 ; utilised by 

 pigeon-fanciers, i. 194 ; Sexual (see 

 Sexual Selection) ; sterility and, i. 

 288 ; unconscious, i. 311 ; and varia- 

 tion, i. 134 ; voluntary, i. 300 ; and 

 inheritance, ii. 86 



Self-fertilisation, abundance of seeds 

 from, ii. 353 ; Darwin's experiments 

 on cross- and, ii. 384,413; evil re- 

 sults of, ii. 373 ; comparison between 

 seeds from cross- and, ii. 352 ; in 

 Goodeniaceae, ii. 258 ; in Orchids, 

 ii. 262 



