INDEX 
485 
Labyrinthodontia, 164, 165 
Lakes as cases of imperfect adapta- 
tion, 150 
Lamarck’s hypothesis very different 
from the author’s, 31 
Land shells, experiments on resistance 
to salt water, 469 
Laniad®, sexual colouring and nidi- 
fication of, 128 
Larentia tripunctaria, 46 
Law which has regulated the intro- 
duction of new species, 3, 6 
confirmed by geographical distri- 
bution, 8 
high organisation of ancient 
animals consistent with, 11 
of multiplication in geometrical 
progression, 142 
of limited populations, 142 
of heredity, 142 
of variation, 142 
of change of physical conditions, 
143 
of the equilibrium of nature, 143 
as opposed to continual inter- 
ference, 144 
Laycock, Dr., on law of “unconscious 
intelligence,” 205 
Leaf butterfly, appearance and habits 
of, 43 
Leaf-insects, 287 
Leopoldinia major, 252 
Lepidoptera, diurnal, 272 
Leptalis, species of, mimic Heliconidse, 
59 
gain a protection thereby, 137 
a good case of mimicry, 362 
Leptena erastus, 382 
Leroy, on nest-building, 108 
Lester, Mr. J. M., on wood -dove 
and robin, 40 
Levaillant, on formation of a nest, 
112 
Life does not imply consciousness, 209 
(note) 
Light, theory of, as producing colours, 
341 
action of, on plants, 396 
supposed direct action of, on 
colours of flowers and fruits, 
406 
Limenitis misippus, 63 
Linnet imitating African finch, 105 
Lizards refusing certain moths and 
caterpillars, 85 
devouring bees, 85 
in the tropics, 302 
Local causes of colour-development, 
382 
Locustidae, adaptive colouring of, 46 
Locusts, richly coloured tropical, 288 
Longicorns, 289 
Loosestrife, Darwin’s researches on 
fertilisation of, 465 
Lophornis ornatus, very pugnacious, 
380 
Lord Howe’s island, white rail in, 
388 
Lowne, Mr. B. T., on nest-building of 
ring-doves in confinement, 110 
Luminousness of some insects a pro- 
tection, 51 
Macaws, 293 
Madagascar, white-marked butterflies 
of, 386 
Madeira, wingless insects of, ex- 
plained by Darwin, 470 
Maine, ancient shell-mounds of, 435 
Malacoderms, a protected group, 66 
Male birds, origin of ornamental 
plumage of, 374 
which incubate, 379 
Male humming-birds produce a! shriller 
sound, 381 
Males, theory of display of ornaments 
by, 375 
Maltlius, Essay on Population, 20 
Maluridse, 134 
Malva sylvestris, M. rotundifolia, 
404 
Mammalia, supposed variations of, 
comparable to those of butterflies, 
386 
local resemblances of, in Africa, 
387 
Mammals, mimicry among, 76 
in the tropics, 306 
Man, does he build by reason or imi- 
tation, 99 
his works mainly imitative, 113 
antiquity of, 167, 180 
difference of opinion as to his 
origin, 167 
unity or plurality of species, 168 
persistence of type of, 169 
