INDEX 
477 
— destructive to insect-specimens, 
28 
and vegetation, special relation 
between, 284 
Apathus, 70 
Apatura and Heterochroa, resemblance 
of species of, 384 
Apes, 306 
Apparent exceptions to law of colour 
and nidification, 183 
Aquatic birds, why abundant, 25 
Aqueous vapour of atmosphere, its 
influence on temperature, 223 
quantity at Batavia and Clifton, 
224 
Archeopteryx, 165 
Archegosaurus, 165 
Architecture of most nations deriva- 
tive, 113 
Grecian, false in principle, 114 
Arctic animals, white colour of, 37, 38 
plants, large leaves of, 407 
flowers and fruits brightly 
coloured, 407 
Areca palm, 252 
Arenga saccharifera, 250 
Argus-pheasant, wonderful plumage 
of, 374 
Argyll, Duke of, on colours of wood- 
cock, 39 | 
on mind in nature, 141 
criticism on Darwin’s works, 
144 
on humming-birds, 153 
on creation by birth, 156 
Arums, 254 
Asilus, 69 
Aspects of nature as influencing man’s 
development, 176 
Assai of the Amazon, 250 
Auckland isles, handsome flowers of, 
408 
Audubon, on the ruby humming- 
pirds, 317, 322 
Azara, on food of humming-birds, 320 
BaLancE in nature, 32 
Bamboos, 257 
uses of, 258-262 
Banana, 254 
Bananas, wild, 254 
Barber, Mrs., on colour changes of 
pupa of Papilio nireus, 345 
Barbets, 297 
Bark, varieties in tropical forests, 243 
Barometer, range of, at Batavia, 234 
Barrington, Hon. Daines, on song of 
birds, 104 
on danger of song and gay plum- 
age to female birds, 138 
Batavia, meteorology of, 219 
and London, diagram of mean 
temperatures, 220 
greatest rainfall at, 235 
range of barometer at, 234 
Bates, Mr., first adopted the word 
*“mimicry,” 54 
his observations on Leptalis and 
Heliconide, 59 
his paper explaining the theory 
of mimicry, 59 
objections to his theory, 76 
on recent immigration of Ama- 
zonian Indians, 100 
on climate at the equator, 235 
on scarcity of forest-flowers on 
Amazon, 264 
on a life in Amazon valley, 
271 
on abundance of butterflies at Ega, 
274 
on importance of study of butter- 
flies, 277 
on leaf-cutting ants, 282 
on blind ants, 284 
on bird-catching spider, 291 
on use of Toucan’s bill, 298 
on large serpents, 304 
on the habits of humming-birds, 
318 
Bats, 307 
Bayma, Mr., 
chanics,” 208 
Beagle, Darwin’s voyage in, 455 
Beauty in nature, 153 
not universal, 155 
of flowers useful to them, 155 
not given for its own sake, 156 
Beetles, 288 
abundance of, in new forest clear- 
ings, 290 
probable use of horns of, 372 
Belt, Mr., on virgin forests of Nicar- 
agua, 265 
on aspects of tropical vegetation, 
268 
on “Molecular Me- 
