INDEX 



451 



American War, i. 203, 214 



Ammonia, Darwin's work on effect on 



roots of carbonate of, ii. 369, 370 

 Ammonites, degeneration of. i. 343, 344; 



reversion, i. 341 ; of S. America, i. 



22, 26 



Amsinckia, ii. 384 

 Amsinckia spectabiliS) dimorphism of, ii. 



282 

 Anacamptis (= Orchis pyramidalis), 



fertilisation of, ii. 419 

 Anacharis ( Elodea Canadensis\ 



spread of. i. 115, 149 

 Analogy, difference between homology 



and, i. 104 



Anamorphism, Huxley on, i. 73 

 Anatifera, illustrating difficulty in no- 

 menclature, i. 69 

 Anatomy of Vertebrata, Owen's attack 



on Darwin and Lyell in, ii. 377 

 Ancient Sea Margins, by R. Chambers, 



ii. 172 

 Anderson- Henry, I., biographical note, 



i. 280 ; letter to, i. 280 ; ir 297-9 

 Andes, Darwin on geology of, i. 15, 



1 8, 19; high-road for European plants. 



ii. 26 ; comparatively recent origin, 



ii. 145 

 Anemophilous plants, Delpino's work 



on, ii. 392 

 Angiosperms, origin of, ii. 20, 21, 239, 



240 

 Angracttm sesquipedale, Duke of Argyll 



on, i. 281-2 

 Animal Intelligence, Romanes on, ii. 



48, 5 1 

 Animals, difference between plants and, 



i. 197 ; resemblance to plants, i. 398 

 Annuals, adapted to short seasons, i. 



492 ; Hildebrand on percentages of, 



i- 493 

 Anoplotherium, occurrence in Eocene 



of S. America, i. 314, 315 



Ansted, D.T., biographical note, i. 175 ; 

 letter to, i. 175 



Antarctic continent, Darwin on exist- 

 ence of Tertiary, ii. 13 ; hypothetical, 

 ii. 26 



Antarctic Flora, Sir J. D. Hooker's, 

 i. 93, 425, 426 ; ii. 223, 242 



Antarctic floras, i. 65, 95, 405, 410 ; 

 Darwin at work on, i. 427 



Antarctic islands, plants of, i. 490 



Antarctic Land, i. 116. 491 



Anti-Jacobin, quiz on Erasmus Dar- 

 win in, i. 175 



Antiquity of Man, Sir Charles Lyell's, 

 i. 185, 186, 193, 241, 243 ; cautious 

 views on species, i. 241 ; ii. 32 ; 

 Darwin's criticism of, i. 193 ; Ex- 



tract on Nat. Selection from, i. 154 ; 



Falconer on, i. 239 ; Owen's criticism 



on, i. 238, 239 



Antirrhinum, peloric flowers, i. 219 

 Ants, account in Origin of Slave-, i. 



197; Forel's work on, ii. II, 19; 



Moggridge on Harvesting-, i. 337 ; 



ii. 389-91 ; F. Miiller's observations 



on neuter, ii. 346 ; storing leaves for 



plant-culture, ii. 360. 

 Apathus, living in nests of Bombus, 



i. 262 

 Apes, comparison as regards advance 



in intellect between man and, i. 334 ; 



ears of anthropoid, ii. 38 

 Aphides, absence of wings in viviparous, 



i. 103 



Aphis, Huxley on, i. 102 

 Apostasia, morphology of flowers, ii. 



279 

 Appalachian chain, Rogers on cleavage 



of, ii. 20 1 

 Apteryx, Owen on. i. 178; wings of, 



i. 171 

 Aquilegia, Hooker and Thomson on, 



i. 86 ; variation in, i. 219 ; peloria 



and reversion, ii. 335 

 Arachis hypogcca, Darwin on, ii. 418 

 Arachnidae, i. 19 

 Araucaria, abundant in Secondary 



period, i. 453 

 Araucarian wood, fossil in S. America, 



i. 23 



Area, Morse on, i. 383 

 Archaopteryx, i. 234 

 Archer-Hind, R. D., translation of pas- 

 sage from Plato by, ii. 426 

 Archetype, Owen's book on, 246, 247 ; 



Owen's term, i. 73 

 d'Archiac's Histoire des Frogrts de la 



Geologic, ii. 125; candidate for R. 



Soc. Foreign list, ii, 229 

 Arctic animals, protective colours, i. 



391 ; ii. 87 



Arctic climate, cause of present, ii. 22 

 Arctic expeditions, Darwin on, i. 58 

 Arctic floras, i. 95 ; relation between 



Alpine and, i. 409 ; relation between 



Antarctic and, i. 405 ; Hooker's Essay 



on, i. 155, 209, 465, 466 ; Darwin's 



admiration of Hooker's Essay, i. 465 ; 



migration of, i. 440 

 Arctic regions, few plants common to 



Europe and N. America not ranging 



to, i. 430; range of plants, i. 430-33 ; 



northern limit of vegetation formerly 



lower, i. 443 ; ii. 239, 240 ; ice piled 



up in, ii. 167 ; previous existence of 



plants in, ii. 239, 240 

 Arenaria z>erna, range, i. 431 



