some facts which heredity cannot explain, 471

often presents a product differing from both the producing agents, 492

its influence in fiction, 492

laws of, simply descriptions not explanations, 493

illustrations of heredity, 495, 496

cause of variations in, discussed, 497

Weismann's views of, 466, 497, 631

works for theology, 621, 632

is God working in us, 624

the law by which living beings tend to reproduce themselves in their descendants, 625