I. EVOLUTION AND NATURAL SELECTION 



INTRODUCTION 



PAGES 



SPECIES AND THEIE DESCENT — LAMARCK S DOCTRINE REGARDING SPECIES 



FDNCTIONAIiLT PHODUCED MODIFICATIONS — DA,RWIN's PROGRESSIVE 



EVOLUTION THROUGH NATURAL LAW SPECIES, VARIETIES, AND MU- 

 TANTS DESCRIBED NUMERICAL RELATION OP ANIMAL GROUPS — 



STRUGGLE FOR EXISTENCE INCREASE IN ORGANIC BEINGS BEME- 



PICIAL VARIATIONS ARISING FROM COMPLEX AND CHANCING RELATIONS 



OF LIFE NATURAL 8ELECTLOX OK THE SURVIVAL OF THE FITTEST 



DOES NOT IMPLY CONSCIOUS CHOICE ANALOGY TO ARTIFICIAL SELECTION 



- — INHERITANCE EVOLUTION AND INSTINCT — .PERFECTED INSTINCT 



IN ANIMALS FORMATION OF NEW SPECIES — MUTATION THEORY OP 



DEVRIES whitman's ANALYSIS OF DEVRIEs' tTHEORY — PERSONAL, 



HISTONAL, AND GERMINAL SELECTION AS DESCRIBED BY WEISMANN — 



QUETELEt's law, trial by ERROR ORTHOGENESIS VARIATION — 



UTILITY THE BASIS OP NATURAL SELECTION PROTECTIVE EESEMBLANCE 



AND MIMICRY SEXUAL SELECTION — SUMMARY ;OF NATURAL SELEC- 

 TION 1-24 



XL ADAPTATIONS IN ANIMALS AND PLANTS, WITH. 

 EXAMPLES 



ADAPTATION PLANT ADAPTATIONS FLOWER AND INSECT ADAPTATIONS 



WHYTHBNECTAB GATHBBBBS ASSEMBLE ON THE BASSWOOD BLOSSOMS 



HOW THE MILKWEED PROFITS BY THE VISITS OP ITS INSECT GUESTS — 



THE SELECTED GUESTS OP THE BUTTERFLY WEED BIRD FLOWERS — THE 



LITTLE PEAR-SHAPED HOUSE ON THE WITCH-HAZEL BOUGH — 



THE GUESTS OP THE WILD BERGAMOT THE SEASONAL PROCESSION 



OP THE PLOWERS, INSECTS, AND BIRDS WHAT THE POLYPHEMUS 



MOTH AND CATERPILLAR SUGGEST 25-64 



