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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. 330 Concluding paragraph rewritten.

London, March, 1870.

CONTENTS.

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III.-Mimicry, and other Protective Resemblances among
Animals.

Test of true and false Theories-Importance of the Principle of Utility
-Popular Theories of Colour in Animals-Importance of Conceal-
ment as influencing Colour-Special modifications of Colour-Theory
of Protective Colouring-Objection that Colour as being dangerous
should not exist in Nature-Mimicry-Mimicry among Lepidoptera
-Lepidoptera mimicking other Insects-Mimicry among Beetles-
Beetles mimicking other Insects-Insects mimicking Species of other
Orders-Cases of Mimicry among the Vertebrata--Mimicry among
Snakes-Mimicry among Birds-Mimicry among Mammals-Objec-

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Wide difference of Opinion as to Man's Origin-Outline of the Theory
of Natural Selection-Different effects of Natural Selection on
Animals and on Man-Influence of External Nature in the develop-
ment of the Human Mind-Extinction of Lower Races-The Origin
of the Races of Man-The Bearing of these views on the Antiquity
of Man-Their Bearing on the Dignity and Supremacy of Man-
Their Bearing on the future Development of Man-Summary-Con-
clusion
Pp. 302-331

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