« EelmineJätka »
164 Illustration of variability from Mr. Baker's re
vision of the British Roses. 173 Additional facts, on local variations of colour. 196 Additional genus of birds (Ceycopsis) peculiar
to Celebes. 199, 200. Concluding remarks.
VI.—The Philosophy of Birds' Nests. 218 On nesting of Terns and Gulls, rewritten. 220 to 222. Daines Barrington, and others, on the song
of birds. 223 On young birds learning to build, by memory and
imitation. 224 Levaillant, on mode of nest-building. 229 On imperfect adaptation in birds' nests.
VII.-A Theory of Birds' Nests. 231, 232. Introductory passages modified, with some
omissions. 233 How modifications of organization would affect the
form of the nest. 235 Illustration from the habits of children and savages. 235, 236. Objection to term “ hereditary habit”
answered. 237 Passage rewritten, on more or less variable char
acters in relation to nidification. 248 On males choosing or rejecting females, and on
the various modes in which colour may be acquired by female birds.
249 On probable ancestral colours of female birds. 255 Protective colouring of the Waxwing.
VIII.— Creation by Law. 293 Amount of variation in dogs. 296, 297. The “ Times” on Natural Selection. 298 to 300. On intermediate or generalized forms of
extinct animals as an indication of transmuta
tion or development. 302 Tabular demonstration of the Origin of Species by
IX.—The development of Human Races, under
the law of Natural Selection. 316 On colour as perhaps correlated with immunity
from disease in man. 326, 327. On the probable future development of man. 330 Concluding paragraph rewritten.
London, March, 1870.
The flattering reception of my Essays by the public and the press having led to a second edition being called for within a year of its first publication, I have taken the opportunity to make a few necessary corrections. I have also added a few passages to the 6th and 7th Essays, and have given two notes, explanatory of some portions of the last chapter which appear to have been not always understood. These additions are as follows:
To avoid altering the paging the additional pages now given have
ing the song of other species.
Passage omitted about nest of Golden
Crested Warbler, which had been inserted on Rennie's authority, but has not been confirmed by any later
observers. 261 Daines Barrington, on importance of
protection to the female bird.
Note A. 372B Note B.
graphical Distribution of Organisms-Geological Distribution of the
advanced-Conclusion. . . . . . . . Pp. 2644
Test of true and false Theories—Importance of the Principle of Utility
-Popular Theories of Colour in Animals-Importance of Conceal-
Special value of the Diurnal Lepidoptera for inquiries of this Nature-
Question of the rank of the Papilionidæ—Distribution of the Papi-