Part 3

135 to 140. Additions to the discussion on the rank of the Papilionidae, 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 Natural Selection.

316 On colour as perhaps correlated with immunity from disease in man.

326, 327. On the probable future development of man.