NATURAL SELECTION 119
Artificial Selection 120
Multiplication of Animals 122
Elimination of the Unfit 125
The Coloration of Animals and Environment 127
Protective Coloration 128
Protective Resemblance 138
Alluring Coloration 141
Warning Coloration 144
Mimicry 147
Recognition Marks 150
Sexual Selection 152
Insect Selection 160
Isolation of Varieties 166