458 



INDEX 



Carbon dioxide, percentage in atmos- 

 phere, ii. 20, 21 



Carboniferous period, glacial action, i. 

 173 ; subsidence during, ii. 136 



Cardamin e,quasi-bi\]b$, on leaves, ii. 374 



Cardnelis elegans, length of beak, ii. 66-7 



Carex, ii. 401, 402 



Carices, of Greenland, i. 470 



Carlisle, Sir A., on Megatherium, ii. 219 



Carlyle, Mrs., remark on Owen, i. 309 



Carmichael, on Tristan d'Acunha, i 401 



Carmichalia, ii. 255 



Carnarvonshire, Darwin on glaciers of, 

 ii. 151, 190 



Caroline Islands, want of knowledge on 

 flora, i. 458 



Carpenter, Dr., on influence of blood in 

 crossing, i. 319, 320 



Carrier-pigeon (see Pigeon), preference 

 for certain colours in pairing, ii. 71 



Carrot, flowers of, i. 355 



Carruthers, W., on potato experiments, 



i- 373 

 Carter, H. J., on reproduction of lower 



animals and foreshadowing of Cheino- 



taxis, ii. 343, 344 



Carus, V., letters to, i. 272 ; ii. 145, 146 ; 



translator of Origin, etc., i. 335 ; 



ii. 145 



Casarea, a snake peculiar to Round 

 Island, ii. 10 



Case, C, Darwin at school of, i. 3, 4 



Cassia, Darwin's experiments on, ii. 

 414-15, 418 ; sleep-movements of 

 leaves, ii. 362, 364, 367, 368, 399 ; two 

 kinds of stamens, ii. 284 ; Todd on 

 flowers of, ii. 292 



Cassini, observations on pollen, ii. 254 ; 

 on ovaries of Composite, ii. 376 



Cassiope hypnoides, i. 433 



Castes, Galton on, ii. 43 



Catalpa, ii. 400 



Catasetum, fertilisation of, ii. 282, 312, 

 316 ; Huxley's scepticism as to me- 

 chanism of, ii. 341, 373; morphology 

 of flower.ii. 275, 276, 305 ; aerial roots, 

 ii. 350; sexual forms of, ii. 305,316, 

 339 > C. saccatum, flower of, ii. 276 ; 

 C. tridentatum, three sexual forms, 

 ii. 280 



Caterpillars, colour and protection, ii. 

 60, 69, 71, 91, 92; experiments by 

 Weir, i. 357 



Cats, Belgian society to encourage 

 homing of, i. 385 ; habits of, ii. no 



Cattell, on crossing sweet peas, ii. 257 



Cattleya, Darwin suggests experiments 

 on, ii. 312 ; self-fertilisation, ii. 315 



Caucasus, wingless insects of, i. 262 



Caucjuenes, baths of, i. 19 



Cave-fish, reference in the Origin to 

 blind, i. 143 



Cave-rat, i. 169 



Caves, animals in Australian, i. 132, 133 



Cavia, specimens collected by Darwin, 

 i. 10, 11 



Ceara Mountains, L. Agassiz on gla- 

 ciers of, ii. 160 



Cebus, expression when astonished, ii. 

 98 



Cecidomyia, ancestor of, i. 261 



Cedars, Hooker on, ii. 8 



Celebes, geographical distribution in, 

 i. 267; ii 15 



Cellaria, i. 16 



Celosia, experiment on, i. 219 



Celts, Bree on, i. 174 



Centipedes, luminosity of, i. 307 



Cenlradenia, two sets of stamens in, ii. 

 293 ; position of pistil, ii. 294 



Cephalanthera, flower, . ii. 273 ; single 

 pollen-grains, ii. 270 ; C. grandijlora, 

 fertilisation mechanism, ii. 265 



Cephalopods, Hyatt on embryology of, 

 i. 338 ; Hyatt on fossil, i. 338 



Cephalotus, ii. 403 



Cervus campestris, of La Plata, i. 144 



Cetacea, Lyell on, i. 272 



Ceylon, Malayan types in, i. 489 ; 

 plants, i. 145, 260 ; former connection 

 with Africa, ii. 15 ; dimorphic plants 

 of, ii. 351 



Chaffinch, courtship of, ii. 70 



Chalazal fertilisation, Miss Benson on, 

 ii- 333 > foreshadowed by Darwin, ii. 

 333 5 Tl "eub on, ii. 333 



Chalk, occurrence of Angiosperms in, 

 ii, 239 ; as oceanic deposit, ii. 146 



Challenger (H.M.S.), reports reviewed 

 by Huxley, i. 388 ; account of sedi- 

 mentation in, ii. 146 



Challis, Prof., ii. 447 



Chambers, R, biographical note, ii. 

 177 ; announced as author of Vestiges 

 of Creation, i. 48 ; on derivation of 

 marine from land and fresh-water or- 

 ganisms, i. 49 ; Darwin visits, i. 186 ; 

 on Glen Roy, ii. 172, 177, 187 ; on 

 land-glaciation of Scotland, ii. 187 ; 

 letters to, ii. 177-80, 443; letter to 

 Milne-Home from, ii. 177 ; on scep- 

 ticism of scientific men, ii. 443 ; men- 

 tioned, ii. 228 



Chance, use of term, i. 395 



Chandler, S. E. (see Farmer, J. B.), 



ii. 21 

 Changed conditions, Schmankewitsch's 



experiments on effect of, i. 391 

 Charles Island, Darwin's plants from, 

 i. 402 



