Routledge Revivals Medieval Science, Technology and Medicine First published in 2005, this encyclopedia demonstrates that the millennium from the fall of the Roman Empire to the Renaissance was a period of great intellectual and practical achievement and innovation. In Europe, the Islamic world, South and East Asia, and the Americas, individuals built on earlier achievements, introduced sometimes radical refinements and laid the foundations for modern development. Medieval Science, Technology, and Medicine details the whole scope of scientific knowledge in the medieval period in more than 300 A to Z entries. This comprehensive resource discusses the research, application of knowledge, cultural and technology exchanges, experimentation, and achievements in the many disciplines related to science and tech- nology. It also looks at the relationship between medieval science and the traditions it supplanted. Written by a select group of international scholars, this reference work will be of great use to scholars, students, and general readers researching topics in many fields, including medieval studies, world history, history of science, history of technology, history of medicine, and cultural studies. Medieval Science, Technology and Medicine An Encyclopedia Edited by Thomas Glick, Steven J. Livesey and Faith Wallis Firstpublishedin2005 byRoutledge Thiseditionfirstpublishedin2016byRoutledge 2ParkSquare,MiltonPark,Abingdon,Oxon,OX144RN andbyRoutledge 711ThirdAvenue,NewYork,NY10017 RoutledgeisanimprintoftheTaylor&FrancisGroup,aninformabusiness ©2005Taylor&FrancisGroup Allrightsreserved.Nopartofthisbookmaybereprintedorreproducedorutilisedinanyformorbyanyelectronic,mechanical,orothermeans, nowknownorhereafterinvented,includingphotocopyingandrecording,orinanyinformationstorageorretrievalsystem,withoutpermissionin writingfromthepublishers. Publisher’sNote Thepublisherhasgonetogreatlengthstoensurethequalityofthisreprintbutpointsoutthatsomeimperfectionsintheoriginalcopiesmaybe apparent. Disclaimer Thepublisherhasmadeeveryefforttotracecopyrightholdersandwelcomescorrespondencefromthosetheyhavebeenunabletocontact. ALibraryofCongressrecordexistsunderLCcontrolnumber:2005022223 ISBN13:978-1-138-05670-1(hbk) ISBN13:978-1-315-16512-7(ebk) M S EDIEVAL CIENCE, T M ECHNOLOGY, AND EDICINE A N E N C Y C L O P E D I A Thomas Glick, Steven J. Livesey, Faith Wallis, Editors New York London For the Brown Reference Group plc. Picture Researchers: Susy Forbes, Laila Torsun Senior Managing Editor: Tim Cooke Editorial Director: Lindsey Lowe Published in 2005 by Published in Great Britain by Routledge Routledge Taylor & Francis Group Taylor & Francis Group 711 Third Avenue 2 Park Square New York, NY 10017 Milton Park, Abingdon Oxon OX14 4RN © 2005 by Taylor & Francis Group, LLC Routledge is an imprint of Taylor & Francis Group International Standard Book Number-10: 0-415-96930-1 (Hardcover) International Standard Book Number-13: 978-0-415-96930-7 (Hardcover) No part of this book may be reprinted, reproduced, transmitted, or utilized in any form by any electronic, mechanical, or other means, now known or hereafter invented, including photocopying, microfilming, and recording, or in any information storage or retrieval system, without written permission from the publishers. Trademark Notice: Product or corporate names may be trademarks or registered trademarks, and are used only for identification and explanation without intent to infringe. Library of Congress Cataloging-in-Publication Data Catalog record is available from the Library of Congress Visit the Taylor & Francis Web site at http://www.taylorandfrancis.com and the Routledge Web site at Taylor & Francis Group is the Academic Division of T&F Informa plc. http://www.routledge-ny.com 001_025 (Roman) Prelims 7/21/05 12:46 PM Page 5 C ONTENTS Introduction vii Acknowledgements xi Contributors xv Alphabetical List of Entries xix Entries by Theme xxiii Entries A–Z 1 Index 531 v 001_025 (Roman) Prelims 7/21/05 12:46 PM Page 7 I NTRODUCTION The focus of this volume—science, technology and medicine in the Middle Ages—reflects a discipline that is barely a century old. For in late autumn 1903, when the French physicist and philosopher of science Pierre Duhem began his investigations of the development of statics, he very much embraced the popular wisdom of the day, that there had been no science until the Renaissance. By the time he published the first volume of Les origines de la statique (Paris: A. Hermann 1905–1906), Duhem had encountered the work of Jordanus Nemorarius, whose writings he took to anticipate the work of Leonardo da Vinci (the subject of another of Duhem’s historical investigations [1906-1913]). The subtitle of the Leonardo volume—ceux qu’il a lus et ceux qui l’ont lu—underscores the dramatic shift that Duhem continued to pursue until his death in 1916: that early modern science did not arise ex nihilo, but instead was the product of a long history that stretched back into the Middle Ages. In the intervening century since the publication of Les origines, Duhem has been rightly criticized for many of his historical and methodological constructions, but one that underlies many of them was his belief in the strong similarity if not virtual identity of the scientific enterprise in the Middle Ages and the early modern world. When he read Buridan’s accounts of impetus, he could see classical theories of inertial motion; when he found formulations of the mean-speed theorem, he observed its later role when v = at; and when he read fourteenth- century hypothetical discussions of diurnal terrestrial motions, he could see their consequences in the Copernican debate. While Duhem’s investigations were largely confined to the physical sciences—after being offered a Parisian chair in history of science late in life, he declined it because he considered himself primarily a physicist—the same early histori- ographical inclinations mutatis mutandis may be seen in the other two areas explored by this volume. In particular, scholars of Duhem’s generation often used terms “science,” “technology,” and “medicine” in a sense that implied, if not explicitly stated, the congruence of those terms with their modern counterparts. Medicine poses its own particular prob- lems in this respect. This is because medicine itself is both science and technology—a system of ideas, but also a system of practices spread across a wide range of social actors. But scholarship in medieval medicine also has a complex history, one profoundly shaped by the modern medical profession and its sense of corporate confidence, based on the identity of medicine and science. The pioneering scholarship on medieval medicine in the nineteenth and early twentieth centuries was largely carried out by physicians themselves, often working within institutes of medical history embedded in university medical faculties. In consequence, medical history was accused by professional historians, some- times unfairly, of being antiquarianism, or worse, Whig history. In the case of medieval medicine, the general prejudices against the Middle Ages seemed to encourage the tendency of this style of history towards self-congratulatory presentism. Most importantly, the older medical history was exclusively the story of doctors, or of institutions now controlled by doctors, such as hospitals. Non-physicians who worked on medieval themes gravitated towards editions of medical texts (particularly vernacular texts, and often edited by scholars of medieval literature). vii