Some of our finest men of to-day are being trained in modern science and in modern theology. There is no scorn in their minds for early science or for early theology. Each served its age, and each taught its truth. But its truth must be restated in terms of to-day. The old creeds will always be loved. The old creeds will always hold our reverence and allegiance. But each age must be at liberty to interpret these creeds in the terms in which that age best understands truth. Each age must be at liberty "to restate the doctrines of the past in accordance with the newness of the age and with the ancient verity of truth." How feeble my own attempt is in this matter, I quite understand; I am still a child of the struggle. It has all come in my lifetime and I have seen and felt not a little of the bitterness of it. I believe the time is ripe for a definite peace. I believe our children, if we do not hamper them, will never know the struggle we have had. In every great institution throughout this broad land men of earnest mind and noble soul are teaching the truth as God gives it to them to know the truth. Let us not hesitate to entrust our children to their hands. To us they may seem to be teachers of discord but they are not speaking in terms that we understand. They are using the language of a new age. Underneath their teaching lies the everlasting truth. Out of their teaching will come everlasting life. Let us trust God in the world. Let us believe that in this age he is teaching men's lips and dwelling in men's hearts. Only so can we give to our children the best their times can give them. If we insist in holding these men back to our conception we but deny them the privilege of moving with God's great procession. We make them laggards when they should be in the front ranks, their faces lighted by a nearer and clearer vision of Almighty truth. INDEX 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. Archaeopteryx, 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. B Bank swallow's nest, 146. Barnacles studies by Darwin, 34. Beagle and Darwin's voyage, 25. Beauty of human female, 127. Biologists accept evolution, 278. Bird colors, 131. Bird from reptile, 122. Bird nests, 145. Birds of a region definite, 61.