I. Man’s Place in Nature, as affected by the Copernican Theory.   When we study the Divine Comedy of Dante—that wonderful book wherein all the knowledge and speculation, all the sorrows and yearnings, of the far-off Middle Ages are enshrined in the glory of imperishable verse—we are brought face to face with a theory of the world and with ways of reasoning about the facts of nature which seem... more...

PART FIRST. "What are you, where did you come from, and whither are you bound?"—the question which from Homer's days has been put to the wayfarer in strange lands—is likewise the all-absorbing question which man is ever asking of the universe of which he is himself so tiny yet so wondrous a part. From the earliest times the ultimate purpose of all scientific research has been to elicit... more...