478 



ANALYTICAL INDEX 



DICTION TO Discussion on. II. 



63-5- 



Whewell, \V., on the study of 



Final Causes as a stimulus to inquiry, 



xlvi n. I. 



While Admiral. 342 : see also 

 I.inienitis, 218, 274, 342. 



White under surface of animals 

 interpreted by A. H. Thayer. 299. 



Whiteness, J. C. Piichard on local 

 development of. 1S7. 



' \\ hy ' and ' How', both answers 

 essential, xlvi, xlvii. 



W ich II ra. proof that hybrids of 5'<///U' 

 do not follow Mendel's principle 

 by, XXXV n. i. 



Wiggins, C. A., butterflies from the 

 \'. Nyanza collected by. 69 : on //. 

 niisippus and its model. 216 n. I. 



Wight, Isle of, effect on plants of 

 wind in. 75. 



Windlc, Prof. B. C. A., on Roux's 

 researches, 128 n. i ; on Teratology. 

 136 n. I. 



Wings, stability of pigments in 

 butterflies', xlv. xlv n. I, 53 ; as evi- 

 dence of uniformity of conditions in 

 geological times, 18; insects in 

 oceanic islands often without. iS; 

 immense size of. in Carboniferous 

 dragon-flies. 18, 37 : fully developed 

 in Carboniferous Phasmids, 36 ; evo- 

 lution of insects', 36. 37 ; ancient 

 insects probably with six. 37; seasonal 

 change of form in butterflies', 206, 

 207, 310, 311: eye-spots especially 

 developed on under surface of, 210, 

 211, 326, 340, 341 ; of butterflies 

 injured as if by enemies. 270. 270 n. i , 

 281-3. 325; darkening of hind, in 

 (iuiana mimetic butterflies, 272. 

 273. 33.1' 332. 350; of dragon-flies, 

 butterflies, moths, flies, and cicadas 

 in nests of Microliicrax, 290. 291. 

 291 n. I. 



Winter moth, 1 56. 



Winter, the time of stress, 148, 

 209, 317, 320: see also dry season. 



Wisconsin. 118 n. i. 252. 25s. 256, 

 380. 



Wisconsin Geological and 

 Natural History Survey, 118 n. i. 



Wood splinter, protective resem- 

 blance to, 319. 



Woodland in S. Africa, definition 

 of, 340. 



Woodpecker, Darwin on the in- 



adequacy of Mutation to account for 

 the, xix. 



Woodward. Henry, on evolution 

 of Crustacea, 40 n. i. 



Worms, prey allured by pseud- 

 episematic resemblance to. 378. 



Wortman. Dr.. on formation of 

 joints by pressure, 115. 



Wright, Miss F. A., on pupal 

 stage of V. urticiie, 306. 



X 



xcnocU's, Papilio, a Danaine mimic 

 not attacked by bee-eaters, 288. 



Xylocopidae, see classification of 

 examples of mimicry, 389, 391-2. 



Yerbury, Col. J. W., on forms of 

 Limnas c/irysippus, 70 n. i, n. 2 ; on 

 Pard fly mimicking Hymenoptcra. 257 

 n, I ; direct evidence of the attacks 

 of birds on butterflies obtained by, 

 283. 285, 286. 



Voonzaleen River, Burma. 290. 



Yorkshire and Lancashire, recent 

 darkening of moths in, 30S-10. 



Young enemies. Milllerian mimicry 

 and, 166-8, 212-15, 222, 278, 327- 

 31, 366; advantage of episcmatic 

 markings to, 357. 



Z 



Zed. Darwin on sterility between 

 selected varieties of, 79. 



Zebra, invisibility of, 298. 



Zeitschr. f. Wissenschaft. Zoo!., 

 84 n. 2. 334 n. 2. 



zitcnius, Mclanitis^ king-crow 

 unable to find. 288, 289. 



Zittel. Karl A., Palaeontologie 

 by, consulted for Essay 1, 43. 



Zoiosonut Uiphyra], cocoon re- 

 placed by loop, tS:c.. in. 150; parallel- 

 ism with Picrinac, 150 ; cryptic 

 colours of larva and pupa of, 1 50 ; 

 unique dimorphism in larva and 

 pupa of, 1 50. 



Zool. Ergeb. einer Raise in Ost- 

 Afrika, F. Stuhlmann, Ilcmip/crn, 

 Gerstaecker. 255. 



Zoological Congress at Berlin 

 (1901), Authors English Address to, 

 the original form of Essay IX, 271 ; 

 Report: of the, 271. 



Zoological Society of London, 



