ANALYTICAL INDEX 



475 



Variation under Domestica- 

 tion, C. Darwin, xxiii, 79. 



Variation, independent and corre- 

 lated, 66 n. 2 ; modification distin- 

 guished from, 73 n. i ; interbreeding 

 checks excessive, 94 ; a factor of 

 selection, 95-6 ; not explained by 

 selection, 96, 97 ; sudden large, no; 

 Weismann's hypothesis on causes of, 

 127, 128, 137 ; believed to be due to 

 hereditary influence of environment, 

 I 37 i predetermined in fertilized 

 ovum, 137, 142, 183: see also xxxvi, 

 xxxvii, xxxvii n. I ; the raison d'etre 

 of sexual reproduction, 137 ; variable 

 protective resemblance and the causes 

 of, 153, 154; Prichard on the obscure 

 origin of, 176 ; Prichard on adapta- 

 tion as caused by laws of, 190. 



Varieties, species and, 47, 66-8 ; 

 transition as test of, 66, 67 ; tendency 

 towards interbreeding between simi- 

 lar, 85-8 ; ' produced in the race, 

 have their beginning in the original 

 structure of some particular ovum or 

 germ' (1826), Prichard, 183; sudden 

 origin of human, 185 ; Prichard on 

 adaptation in species and, 189, 190. 



VARIOUS CONCEPTIONS OF 

 SPECIES, II. 59-63. 



VARIOUS USES OF TERM MIMI- 

 CRY : ESSENTIAL ELEMENT IN 

 MIMICRY, X. 359-61. 



Venation, importance of, as com- 

 pared with colour, xvii. 



Venezuela, character of chief mi- 

 metic butterflies in, 273. 



Venezuela and Central America, 

 colours of a chief Ithomiine-centred 

 combination in, 350. 



Ventral glands of Croesus larvae, 

 239, 320. 



Venus, the question of water on, 14. 



verbasci, C^^cuIlia, cryptic resem- 

 blance of moth of, 319 ; transition 

 from aposematic to cryptic defence 

 of larvae of, 318; evidence of dis- 

 tastefulness of, 318. 



Verbascum, Gartner on, 78 ; Dar- 

 win on sterility between varieties of, 



79- 



Verhandl. der k.-k. zool.-botan. 

 Qes. in Wien (1883), 256, 258, 302. 



Verhandl. d. V. Internat. Zool. 

 Congr. z. Berlin, 271. 



Vernon, H. M., introduction to the 

 study of Mendelism by, xxxv n. 2. 



versicolor, Endromis, mimicry of 

 saw-fly larvae by larvae of, 238, 239, 

 239 n. i. 



VERTEBRATA, BEARING OF IN- 

 SECT MIMICRY, &c., UPON SUPPOSED 

 HEREDITARY TRANSMISSION OF 

 EXPERIENCE IN, V. 166-8. 



Vertebrata, 43 : see also classifica- 

 tion of examplesof mimicry, 393; evo- 

 lution of, xliii, 26, 27, 30, 31 ; in classi- 

 fication, 25 ; progressive changes of 

 lower Phyla even slower than those 

 of, 28 ; of early Palaeozoic, 30, 31 ; 

 specialized character of earliest 

 known, 30, 31 ; past history inferred 

 from comparative anatomy of, 32 ; 

 origin of limbs of, 108, 109 ; intelli- 

 gence of the higher, 116, 117; in- 

 stincts of, 116, 117. 



Vespa, comb-making instinct of, 

 prior to experience, 164, 165. 



vesta, Heliconitts, varieties of, 69. 



Vestiges of the Natural History 

 of Creation, R. Chambers, xviii, xix, 

 104, 105, 175. 



Vetch, ant-like Locustid and models 

 on Rhodesian, 257 n. I. 



vetustus, Heliconius, mimics 

 Melinaea in B. Guiana, 332. 



Victoria Nyanza, eastern and west- 

 ern sub-sp. of Amauris meeting at, 

 xxxv, 69 : see also 335 ; the meeting 

 place of certain E. and W. African 

 models and their mimics, 338 ; range 

 of merrfe, sub-sp. of Pap. dardanns, 

 from W. coast to, 374, 374 n. 3. 



Vines, Prof. S. H., on the study of 

 adaptation as a stimulus to inquiry, 

 xlvi n. I. 



vimtla, Dicranura, caustic potash 

 for softening cocoon secreted by, 1 59. 



violae, Acraea, proved to be un- 

 palatable, 269. 



mately relished snake-like caterpillar, 



367- 



Volcanic dust on ocean floor, 20. 



Volucella, resemblance to humble- 

 bees of, 22 1 : see also 251; resemblance 

 not aggressive, 378 ; larvae of, proba- 

 bly beneficial to humble-bees, 378. 



VV 



Wabosakhan Camp, Burma, king- 

 crow unable to detect Melanitis at, 

 288, 289. 



wahlbergi^HypoHmnas (Eura/ta), 



