Contributions to the Theory of Natural Selection / A Series of Essays

by Alfred Russel Wallace

ADDITIONS AND CORRECTIONS TO THE ESSAYS AS ORIGINALLY PUBLISHED.
Essays I. and II. are unaltered, but short notes are added at pp. 19, 24, 29, and 40.
III.—Mimicry, and other Protective Resemblances among Animals.
PAGE
53	Additional illustration of protective colouring in the case of the wood-dove and the robin.
63	On moths resembling bird’s dung and mortar.
86	Correction of some names of African Papilios and a reference to Mr. Trimen’s observations.
89	Mr. Jenner Weir’s observation on birds which refused to eat Spilosoma menthrasti.
102	An additional case of snake mimicry in Oxyrhopus trigeminus.
107	Mr. Salvin’s case of mimicry among hawks.
113	Name, Diadema anomala, added.
117 to 122.	Use of gay colours in caterpillars, with an account of Mr. Jenner Weir’s and Mr. Butler’s observations.
IV.—The Malayan Papilionidæ or Swallow-tailed Butterflies, as illustrative of the Theory of Natural Selection.
135 to 140.	Additions to the discussion on the rank of the Papilionidæ, and on the principles which determine the comparative rank of groups in the animal kingdom.
164	Illustration of variability from Mr. Baker’s revision 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 characters 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 transmutation or development.
302	Tabular demonstration of the Origin of Species by Natural Selection.
IX.—The development of Human Races, under the law of NaturalSelection.
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.

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PREFACE TO THE SECOND EDITION.

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 been lettered.
1st Ed.	2nd Ed.
221	221	Additional facts as to birds acquiring the song of other species.
223	223A} 223B}	Mr. Spruce’s remarks on young birds pairing with old.
228	228A} 228B}	Pouchet’s observations on a change in the nests of swallows.
229	—	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	261	Daines Barrington, on importance of protection to the female bird.
	372	Note A.
	372B	Note B.

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