x FOOT-NOTES TO EVOLUTION. 
PAGE 
tures in man. Gill slits in man. Objections to the the- 
ory of descent. Relation of present heredity to past 
environment. Darwin’s hope. The species of eel. The 
reality of species. The old idea of species has passed 
away. The acceptance of the theory of descent. The 
philosophy of evolution. Influence of theory of de- 
scent. Origin of man. Meaning of homology. Decay- 
ing scientific beliefs. Darwin’s words. The conception 
of God. Darwin’s home. Boyesen on evolution. 
II.—EVOLUTION : WHAT IT IS AND WHAT IT IS NOT . 54 
What evolution is. The science of organic evolution or 
bionomics. Meaning of law. Soundness and solvency 
of Nature. The indifference of Nature. Evolution asa 
theory of organic development. Each fact has a mean- 
ing. Evolution as a method of study. Evolution as a 
system of cosmic philosophy. Decay of formula. What 
evolution is not. Man not a developed monkey. Not 
progress, but adaptation. Humanity not the goal of evo- 
lution. Change by slow divergence. No innate tend- 
ency toward progression. Spontaneous generation. 
Evolution not a creed. Evolution not a religion. Sci- 
ence its own witness. 
III—THE ELEMENTS OF ORGANIC EVOLUTION. » 75 
Heredity. Irritability. Individuality. Natural selec- 
tion. Concessions of life. Self-activity. Altruism. Iso- 
lation. Nutrition in transmission. Survival of the exist- 
ing. Inheritance of acquired characters. The unknown 
factors. 
IV.—THE FACTORS OF EVOLUTION FROM THE STAND- 
POINT OF EMBRYOLOGY. By Professor Edwin 
Grant Conklin . 3 e : ; : Zi . 100 
Embryology shows the method of evolution. Statement 
of propositions, Causes of development. Intrinsic causes 
dependent on nature of protoplasm. Inherited charac- 
ters predetermined in structure of germ cell. Germinal 
