Contents 



CHAPTER III 



FAMILY AND SOCIETY 



PAGE 



Origin of family life — Society — Selection of families and 

 larger groups — The reign of custom — Tribal re- 

 sponsibility and conscience — The clan and progress 

 — Nations; races; the brotherhood of man — 

 Progress and degeneration — Man a product of all 

 the geological ages — Complexity of human structure 

 — Evolution a series of changes and of successive 

 attainment of subsidiary and secondary ends . . 41 



CHAPTER IV 



THE LOGIC OF EVOLUTION 



Protoplasm — Cell colonies — Digestion and muscle — 

 Muscular locomotion and sense organs stimulate 

 brain — Reversal of law of sequence of function leads 

 to degeneration — Mental evolution — Sequence of 

 perceptions — Study of relations — Morals and re- 

 ligion — Sequence of motives — The human plane of 

 life — The goal of human development . . . 61 



CHAPTER V 



THE SURVIVAL OF THE FITTEST 



Survival and progress both essential to fitness — Com- 

 petitors during the paleozoic age; the mesozoic 

 age; the cenozoic age — The battle not to the strong 

 — Dominance and fitness — The spur of necessity — 



XU 



