LAFRESNAYE. 
INDEX. 
LECKY. 
441 
Lafresnaye, M. de, on Birds of 
Paradise, ii. 78. 
Lamarck, on the origin of man, i. 4. 
Lamellibrancuiata, i. 324. 
Lamkllicorn beetles, horn-like pro- j 
cesses from the head and thorax of, ! 
i. 370, 373 ; analogy of, to Rurnin- | 
ants, i. 373; influence of sexual i 
selection on, i. 377. 
Lamellicornia, st ridulation of, i.380. 
Lamont, Mr. on the tusks of tlie 
Walrus, ii. 242; on the use of its 
tusks by the Walrus, ii. 257. 
Lampornis porphyrurus , colours of 
the female, ii. 168. 
Lancelet, i. 204, 212. 
Landois, H., on the production of 
sound by the Cicada?, i. 351 ; on the 
stridulating organ of the Crickets, 
i. 354 ; on fi$ct£cus f i. 355 ; on the 
stridulating organs of the Acri- 
diidae, i. 350 ; on the presence of 
rudimentary stridulating organs in 
some female Orthoptera, i. 359 ; on 
the stimulation of JS'ecrop/iorus, i. 
378; on the stridulant organ of 
Cerambyx Aeros, i. 380; on the 
stridulating organs in the Coleo- 
ptera, i. 382 ; on the ticking of 
Anobium, i. 385 ; on the stridulant 
organ of Geotru-pes , i. 380. 
Language an art, i. 55 ; articulate, 
origin of, i. 50 ; relation of the 
progress of, to the development of 
the brain, 1. 57 ; effects of inherit- 
ance in production of, i. 58 ; com- 
plex structure of, among barbarous 
nations, i. 61; natural selection in, 
i. 61 ; gesture, i. 232 ; primeval, i. 
235 ; of a lost tribe preserved by a 
parrot, i. 236. 
Languages, presence of rudiments in, 
i. 60; classification of’ i. 60; vari- 
ability of, i. 60 ; crossing or blend- 
ing of, i. 60 ; complexity of, no 
test of perfection or proof of special 
creation, i. 62 ; resemblance of, 
evidence of community of origin, i. 
i89. 
Languages and species, identity of 
evidence of their gradual develop- 
ment, i. 59. 
Lanius , ii. 180 ; characters of young, 
ii. 185. 
Lanius rufus , anomalous young of, ii. 
211 . 
Lankester, £, R., on comparative 
longevity, i. 168, 171; on the de- 
structive effects of intemperance, i. 
173. 
Lanugo, of the human foetus, i. 25 ; 
ii. 375. 
Lapponian language, highly arti- 
ficial, i. 61. 
Lark, proportion of the sexes in the, 
i. 307 ; female, singing of the, ii. 
54. 
Larks, attracted hy a mirror, ii. 112. 
LARTET, E., on the size of the brain 
in mammals, i. 51 ; comparison of 
cranial capacities of skulls of recent 
and tertiary mammals, i. 146; on 
Dryopithecus, i. 199. 
Larus, seasonal change of plumage in, 
ii. 228. 
Larva, luminous, of a Brazilian 
beetle, i. 345. 
Larynx, muscles of the, in song- 
birds, ii. 55. 
Lasiocampa quercus , attraction of 
males by the female, i. 311 ; sexual 
difference of colour in, i. 398. 
Latham, R. G,, on the migrations of 
man, i. 136. 
Latooka, perforation of the lower 
lip by the women of, ii. 341. 
Laotullaro, on the abnormal division 
of the malar bone in man, i. 124. 
Lawrence, W., on the superiority 
of savages to Europeans in power 
of sight, i. 118; on the colour of 
negro infants, ii. 318 ; on the fond- 
ness of savages for ornaments, ii. 
338 ; on beardless races, ii. 349 ; 
on the beauty of the English aris- 
tocracy, ii. 357. 
I-AYARn, E. I,., on an instance of 
rationality in a Cobra, ii. 30; on 
the pugnacity of Oniliis Stanteyi , 
ii. 44. 
Layc'OCK, Dr., on vital periodicity, 
i. 12. 
Leaves, decaying, tints of, i. 323. 
Lecky, Mr., on tho sense of duty, i. 
71 ; ou suicide, i. 94 ; on the prac- 
tice of celibacy, i. 96; his view of 
the crimes of savages, i. 97 ; on the 
gradual rise of morality, i. 103. 
