INDEX 
493 
Useless specific characters, no proof 
of existence of, 141 
Utricularise inhabiting bromelias, 118 
V 
Vanessa callirhoe, small variety in 
Porto Santo, 106 
Variability of the lower animals, 42 
of the Foraminifera, 43 
of sea-anemones, 43 
of land mollusca, 43 
of insects, 44 
of lizards, 46 
of birds, 49 
of primary wing-feathers, 51 
of wings and tail, 53 
of Dolichonyx oryzivorus, 55 
of Agelceus phceniceus, 56 
of Cardinalis virginianus, 58 
of tarsus and toes, 60 
of birds in Leyden Museum, 61 
of Sciurus carolinensis, 67 
of skulls of wolf, 70 
of skulls of a bear, 72 
of skulls of Sus cristatus, 73 
of plants, 76 
of oaks, 77 
Variation, Lyell on, 4 
in internal organs, 66 
the facts of, 83 
proofs of generality of, 85 
of vegetables and fruits, 86 
of apples and melons, 87 
under domestication accords 
with that under nature, 100 
coincident not necessary, 127 
and heredity, problems of, 410 
Professor Geddes’s theory of, 428 
the cause of, 439 
Variations of flowers, 88 
of domestic animals, 88 
of domestic pigeons, 89 
conditions favourable to produc¬ 
tion of, 98 
beneficial, 143 
Varieties, importance of, 41 
of same species adapted to self 
or to insect-fertilisation, 330 
Vegetables, variation of, 86 
Vegetation and reproduction, antag¬ 
onism of, 428 
Vertebrata, mimicry among, 261 
geological succession of, 405 
Vestiges of Creation, 3 
Viola odorata, 2 
canina, 2 
Violets, as illustrating species, 2 
Von Bucli on species, 6 
W 
Wallace, Dr. Alexander, on absence 
of choice by female moths, 
275 
Ward, Mr. Lester F., on progressive 
development of plants, 398 
Warning coloration, 232 
Warning colours of marine animals, 
265 
Wasps and bees, mimicry of, 258 
poisonous with warning colours, 
287 
Water-cress, chokes rivers in New 
Zealand, 24 
driven out by willows, 24 
Water-ouzels, probable origin of, 116 
Weale, Mr. Mansel, on protective 
colours of butterflies, 206 
Weeds of United States, 15 
Weir, Mr. Jenner, on deceptive re¬ 
semblance of a caterpillar to 
a twig, 204 
on inedibility of conspicuous 
caterpillars, 236 
on birds disregarding inedible 
larvee, 254 
Weismann on progressive adaptation 
of colours of larvre, 206 
on non-heredity of acquired 
characters, 440 
and Galton’s theories of heredity 
almost identical, 443 (note) 
on origin of the mathematical 
faculty, 472 (note) 
Weismann’s theory of heredity, 437 
Westwood, Professor, on variation of 
insects, 44 
deceived by a mimicking cricket, 
259 
White coloration of insular birds and 
butterflies, 230 
Whymper, Mr., his sensations when 
falling on the Matterhorn, 38 
