DURING THE FIRST THIRTEEN
CENTURIES OF OUR ERA

BY LYNN THORNDIKE

VOLUME I

COLUMBIA UNIVERSITY PRESS
NEW YORK AND LONDON

Copyright 1923 Columbia University Press
First published by The Macmillan Company 1923

ISBN 0-231-08794-2
Manufactured in the United States of America
10 9 8 7

CONTENTS

PAGE
Prefaceix
Abbreviationsxiii
Designation of Manuscriptsxv
List of Works Frequently Cited by Author and Date ofPublication or Brief Titlexvii
CHAPTER
1.Introduction[1]
[BOOK I]. THE ROMAN EMPIRE
Foreword[39]
2.Pliny’s Natural History[41]
I.Its Place in the History of Science[42]
II.Its Experimental Tendency[53]
III.Pliny’s Account of Magic[58]
IV.The Science of the Magi[64]
V.Pliny’s Magical Science[72]
3.Seneca and Ptolemy: Natural Divination and Astrology[100]
4.Galen[117]
I.The Man and His Times[119]
II.His Medicine and Experimental Science[139]
III.His Attitude Toward Magic[165]
5.Ancient Applied Science and Magic: Vitruvius,Hero, and the Greek Alchemists[182]
6.Plutarch’s Essays[200]
7.Apuleius of Madaura[221]
8.Philostratus’s Life of Apollonius of Tyana[242]
9.Literary and Philosophical Attacks upon Superstition:Cicero, Favorinus, Sextus Empiricus, Lucian[268]
10.Spurious Mystic Writings of Hermes, Orpheus, andZoroaster[287]
11.Neo-Platonism and Its Relations to Astrology andTheurgy[298]
12.Aelian, Solinus, and Horapollo[322]
[BOOK II]. EARLY CHRISTIAN THOUGHT
Foreword[337]
13.The Book of Enoch[340]
14.Philo Judaeus[348]
15.The Gnostics[360]
16.The Christian Apocrypha[385]
17.The Recognitions of Clement and Simon Magus[400]
18.The Confession of Cyprian and Some Similar Stories[428]
19.Origen and Celsus[436]
20.Other Christian Discussion of Magic Before Augustine[462]
21.Christianity and Natural Science: Basil, Epiphanius,and the Physiologus[480]
22.Augustine on Magic and Astrology[504]
23.The Fusion of Pagan and Christian Thought inthe Fourth and Fifth Centuries[523]
[BOOK III]. THE EARLY MIDDLE AGES
24.The Story of Nectanebus, or the Alexander Legendin the Early Middle Ages[551]
25.Post-Classical Medicine[566]
26.Pseudo-Literature in Natural Science[594]
27.Other Early Medieval Learning: Boethius, Isidore,Bede, Gregory[616]
28.Arabic Occult Science of the Ninth Century[641]
29.Latin Astrology and Divination, Especially in theNinth, Tenth, and Eleventh Centuries[672]
30.Gerbert and the Introduction of Arabic Astrology[697]
31.Anglo-Saxon, Salernitan and Other Latin Medicinein Manuscripts from the Ninth to the Twelfth Century[719]
32.Constantinus Africanus (c. 1015-1087)[742]
33.Treatises on the Arts Before the Introduction ofArabic Alchemy[760]
34.Marbod[775]
Indices:
[General][783]
[Bibliographical][811]
[Manuscripts][831]
BOOK IV. THE TWELFTH CENTURY
35.The Early Scholastics: Peter Abelard and Hughof St. Victor3
36.Adelard of Bath14
37.William of Conches50
38.Some Twelfth Century Translators, Chiefly ofAstrology from the Arabic66
39.Bernard Silvester; Astrology and Geomancy99
40.Saint Hildegard of Bingen124
41.John of Salisbury155
42.Daniel of Morley and Roger of Hereford171
43.Alexander Neckam on the Natures of Things188
44.Moses Maimonides205
45.Hermetic Books in the Middle Ages214
46.Kiranides229
47.Prester John and the Marvels of India236
48.The Pseudo-Aristotle246
49.Solomon and the Ars Notoria279
50.Ancient and Medieval Dream-Books290
BOOK V. THE THIRTEENTH CENTURY
Foreword305
51.Michael Scot307
52.William of Auvergne338
53.Thomas of Cantimpré372
54.Bartholomew of England401
55.Robert Grosseteste436
56.Vincent of Beauvais457
57.Early Thirteenth Century Medicine: Gilbert ofEngland and William of England477
58.Petrus Hispanus488
59.Albertus Magnus517
I. Life521
II. As a Scientist528
III. His Allusions to Magic548
IV. Marvelous Virtues in Nature560
V. Attitude Toward Astrology577
60.Thomas Aquinas593
61.Roger Bacon616
I.Life619
II.Criticism of and Part in Medieval Learning630
III.Experimental Science649
IV.Attitude Toward Magic and Astrology659
62.The Speculum Astronomiae692
63.Three Treatises Ascribed to Albert720
64.Experiments and Secrets: Medical and Biological751
65.Experiments and Secrets: Chemical and Magical777
66.Picatrix813
67.Guido Bonatti and Bartholomew of Parma825
68.Arnald of Villanova841
69.Raymond Lull862
70.Peter of Abano874
71.Cecco d’Ascoli948
72.Conclusion969
Indices:
General985
Bibliographical1007
Manuscripts1027

PREFACE

This work has been long in preparation—ever since in 1902-1903 Professor James Harvey Robinson, when my mind was still in the making, suggested the study of magic in medieval universities as the subject of my thesis for the master’s degree at Columbia University—and has been foreshadowed by other publications, some of which are listed under my name in the preliminary bibliography. Since this was set up in type there have also appeared: “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 Historical Review. For permission to make use of these previous 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 Review, Classical Philology, The Monist, Nature, The Philosophical 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 dissertation. 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.