371 



1XDEX. 



BASILORNIS, 196. 



BATES, Mr., first adopted the word 

 " mimicry," 75 ; his observations 

 on Leptalis and Heliconidse, 82 ; 

 his paper explaining the theory 

 of mimicry, 83 ; objections to 

 his theory, 108 ; on variation, 

 165 ; on recent immigration of 

 Amazonian Indians, 214. 



BAYMA, Mr., on "Molecular Me- 

 chanics," 363, 364. 



BEAUTY in nature, 282; not uni- 

 versal, 284 ; of flowers u c ef ul to 

 them, 285; not given for its own 

 sake, 285. 



BIRDS, possible rapid increase of, 

 29 ; numbers that die annually, 

 30 ; mimicry among, 103 ; dull 

 colour of females, 114; nidi- 

 fication as affecting colour of 

 females, 116 ; refusing the 

 gooseberry caterpillar, 119 ; the 

 highest in rank and organiza. 

 tion, 137 ; dimorphism in, 155 ; 

 why peculiar nest built by each 

 species, 215-219; build more per- 

 fect nests as they grow older, 

 224, 227; alter and improve 

 their nests, 226; sexual differ- 

 ences of colour in, 239. 



Bombus hortorurn, 90. 



Bombjcila garrula, colours and 

 nidification of, 255. 



BOMBYLIUS, 98. 



BRAIN of the savage but slightly 

 less than that of civilized man, 

 336 ; size of, an important ele- 

 ment of mental power, 335 ; of 

 savage races larger than their 

 needs require, 338, 343 ; of man 



and of anthropoid apes com- 

 pared, 338. 



BROCA, Professor Paul, on the fine 

 crania of the cave men, 337. 



Bryophila glandijera and B. perl a 

 protectively coloured, 63. 



BUCEROTIDJE, sexual colouring and 

 nidification of, 241. 



BUCCOXID.E, sexual colouring and 

 nidification of, 241. 



BUFF-TIP moth, resembles a broken 

 stick, 62. 



BUILDINGS of various races do not 

 change, 213. 



BUPRESTID.E, resembling bird'* 

 dung, 57 ; similar colours in 

 two sexes, 114. 



BUTTERFLIES, value of, in studying 

 " natural selection," 131 ; varie- 

 ties of, in Sardinia and Isle of 

 Man, 178. 



CACIA anthriboules, 94. 



Callizona acesta. protective colour- 

 ing of, 59. 



CALORNIS, 239. 



CAPITONID.E, sexual colouring and 

 nidification of, 241. 



Capnolymma stygium, 94. 



CARABID.E, special protection 

 among, 72 ; similar colouring 

 of two sexes, 114. 



CASSID.E, resemble dew drops, 58. 



CATERPILLARS, mimicking a poi- 

 sonous snake, 99 ; gaudy co- 

 lours of, 117 ; various modes of 

 protection of, 118; gooseberry 

 caterpillar, 119 ; Mr. Jenner 

 Weir's observations on, 119; 

 Mr. A. G. Butler's observations 

 on, 121. 



