COVER -- CONTENTS -- INTRODUCTION -- ORIGIN OF THE EARTH -- ORIGIN OF LIFE -- EVIDENCES OF ORGANIC EVOLUTION -- LAMARCKISM -- DARWINISM -- DARWIN'S THEORY OF PANGENESIS -- NATURAL SELECTION -- DE VRIES' MUTATION THEORY -- ISOLATION -- ADAPTATIONS -- INDIVIDUAL AND SPECIFIC ADAPTATIONS -- COLOURATION -- MIMICRY -- VARIATION -- SPECIATION -- ARTIFICIAL SELECTION -- SEXUAL SELECTION -- MICRO AND MACRO EVOLUTION -- MODERN SYNTHESIS OF EVOLUTION -- ANIMAL DISTRIBUTION -- ZOOGEOGRAPHICAL DISTRIBUTION -- BARRIERS -- THE GEOLOGIC TIME TABLE -- DINOSAURS -- EVOLUTION OF HORSE -- EVOLUTION OF CAMEL -- EVOLUTION OF ELEPHANT -- EVOLUTION OF MAN -- Index.