INDEX 



[The German a, 0, ii are treated as a, o, u, not as ae, oe, ue.] 



ABERRANT GENERA, Darwin's work 

 on, i. 82-4, 86 



Abich, on Vesuvius, ii. 131 



Abinger, excavations of Roman villa 

 at, ii. 213 ; plants from, ii. 407 



Abinger Hall, Darwin visits, i. 360 ; 

 ii. 392, 394 ; Lord Farrer's recol- 

 lections of Darwin at, ii. 392 



Abiogenesis, Huxley's address on Bio- 

 genesis and, i. 322, 323 



Abortion, Romanes on, i. 352 



Abrolhos, plants from the, i. 9, 410 



Abromia, ii. 428. 



Abrjts precatotiuS) dispersal of seeds, 



349 

 Abstract, Darwin's dislike of writing 



papers in, ii. 279 

 Abstract, the name applied by Darwin 



to the Origin, i. 447 

 Abutilon, F. Miiller's experiments on, 



ii- 35 6 , 357, 359. 360 

 Abyssinia, flora of, i. 447, 465, 477 ; 



ii. 5 25 

 Academy, Darwin's opinion of the, i. 



317 



Acanthacea?, i. 108 



Acceleration of development, Cope and 



Hyatt on retardation and, i. 338-48 ; 



reference in the Origin to, i. 340 

 Accumulation, of deposits in relation to 



earth-movements, ii. 122; of specific 



differences, i. 171 ; of sterility, i. 



292, 293, 297, 299 ; of varieties, i. 



207, 290, 293, 294 

 Accuracy, difficult to attain, ii. 324 ; 



the soul of Nat. History, ii. 323 

 Acei-as, fertilisation of, ii. 263, 265 ; 



monstrous flower, ii. 317 

 Acineta> Darwin unable to fertilise, ii. 



347 

 Acomtum, peioria and reversion, ii. 



335 

 Acropera, atrophy of ovules, ii. 304, 



305, 308 ; Darwin's mistake over, ii. 



306, 307, 309, 346, 347 ; fertilisation 

 of, ii. 273, 303, 304, 307, 312, 316, 

 318, 336, 337 ; relation to Gongora, 

 ii. 282 ; J. Scott's work on, ii. 302 



VOL. II, 



Acropera Loddigesii, abnormal structure 

 of ovary, ii. 304 ; Darwin's account 

 of flower, ii. 280, 307 ; artificial 

 fertilisation, ii. 305, 306, 336 ; 

 relation to A. luteola, ii. 309 ; J. 

 Scott's observations, 302-6 ; two 

 sexual conditions of, ii. 305 ; A. 

 luteola, Darwin's observations on, 

 ii- 303 ; fertilisation of, ii. 325, 336 ; 

 flowers of, ii. 280, 282, 305 ; structure 

 of ovary, ii. 304, 307 



Adaptation, Darwin's difficulty in un- 

 derstanding, i. 213 ; hybrids and, i. 

 292 ; not the governing law in Geo- 

 graphical Distribution, i. 406 ; more 

 clearly seen in animals than plants, 

 i. 152 ; Natural Selection and, i. 

 161 ; in orchids, i. 156; resemblances 

 due to, i. 306 ; in Woodpecker, i. 

 156. 



Adenanthera pavonina, seed-dispersal 

 by Parrots, it. 349 



Adenocarpm, a Mediterranean genus 

 in the Cameroons, ii. 6 



Adlumia, i. 100 ; ii. 335, 342, 343 



Adoxa, difference in flowers of same 

 plant, ii. 376 



Aeddium elatimim, Witches'-Broom 

 fungus, ii. 422 



Aegialitis Sanctae-kelence, i. 484 



Aegihps triticoides, hybrids, ii. 285 



Affaiblissement, A. St. Hilaire on, i. 



415 

 Africa, connection with Ceylon, ii. 15; 



connection with India, ii. 16 ; con- 

 tinent of Lemuria and, ii. 15 ; con- 

 sidered by Murchison oldest conti- 

 nent, ii. 37 ; plants of equatorial 

 mountains of, ii. 26 



Africa (East), coral reefs on coast, ii. 

 194 



Africa (South), plants of, i. 163 ; re- 

 lation of floras of Western Europe 

 to, i. 379 



Africa (West), botanical relation to 

 Java, i. 412, 415 



Agassiz, Alex., Three Cruises of the 

 Blake, ii. 147 ; his belief in evolution 



29 



