Excerpt from A History of Magic and Experimental Science

Galen: the Man and His Times, in The Scientific Monthly, January, 1922; Early Christianity and Natural Science, in The Biblical Review, July, 1922; The Latin Pseudo Aristotle and Medieval Occult Science, in The Journal of English and Germanic Philology, April, 1922 and notes on Daniel of Morley and Gundissalinus in The English His torical Review. For permission to make use of these pre vions publications in the present work I am indebted to the editors of the periodicals just mentioned, and also to the editors of The Columbia University Studies in History, Economics, and Public Law, The American Historical Re view, Classical Philology, The M onist, Nature, The Philo sophical Review, and Science. The form, however, of these previous publications has often been altered in embodying them in this book, and, taken together, they constitute but a fraction of it. Book I greatly amplifies the account of magic in the Roman Empire contained in my doctoral dis sertation. Over ten years ago I prepared an account of magic and science in the twelfth and thirteenth centuries based on material available in print in libraries of this country and arranged topically, but I did not publish it, as it seemed advisable to supplement it by study abroad and of the manuscript material, and to adopt an arrangement by authors. The result is Books IV and V of the present work.