A
Acquired characters not inherited, [52].
Adaptation and purpose, [89].
Adaptation for the individual, [87].
Adaptation for the species, [125].
Advanced teaching, [291].
Agassiz and evolution, [19].
Age of the earth, [156].
Allantois of chick, [206].
American Museum of Natural History, [221].
Anaxagoras and evolution, [9].
Anaximander and evolution, [8].
Ancestry of man, [186].
Andes rising out of Pacific, [32].
Aquinas, Thomas, and evolution, [12].
Archæopteryx, [181].
Aristotle and evolution, [9].
Armadillo and glyptodon, [29].
Artificial flavors, [161].
Artificial proteids, [161].
Artificial sugars, [161].
Ascent of man, [189].
Asexual reproduction, [194].
Augustine, Saint, and evolution, [11].
Australian mammals, [186].