Cover illustration: This illustration is only found in Par. gr. 2381 (f. 78v). The “Man in the Moon” refers to a number of pareidolic images of the human face, head or body that certain traditions recognise on the face of the (full) moon. These images combine the dark areas of the lunar maria, or “seas,” and the lighter highlands of the lunar surface. The “Man in the Moon” illustration is particularly interesting because the author drew it on the basis of his own observation using a mirror (ὡς ἡµεῖς διά τινος κατόπτρου τοῦθ’οὑτωσὶ γινόµενον ἔγνωµεν)Licensed for use under Creative Commons Attribution-NonCommercial-ShareAlike 3.0 Unported Access Rights: https://gallica.bnf.fr/ark:/12148/btv1b10722220g.r=grec%202381?rk=21459;2Library of Congress Cataloging-in-Publication DataNames: Lazaris, Stavros, editor. Title: A companion to Byzantine science / edited by Stavros Lazaris. Description: Leiden ; Boston : Brill, 2020 | Series: Brill’s companions to the Byzantine world, 2212-7429 ; volume 6 | Includes bibliographical references and index. Identifiers: LCCN 2019048174 (print) | LCCN 2019048175 (ebook) | ISBN 9789004414600 (hardback) | ISBN 9789004414617 (ebook) Subjects: LCSH: Science, Medieval--Byzantine Empire--History. Classification: LCC Q124.97 .C69 2020 (print) | LCC Q124.97 (ebook) | DDC 509.495/0902--dc23 LC record available at https://lccn.loc.gov/2019048174LC ebook record available at https://lccn.loc.gov/2019048175Typeface for the Latin, Greek, and Cyrillic scripts: “Brill”. See and download: brill.com/brill-typeface.issn 2212-7429isbn 978-90-04-41460-0 (hardback)isbn 978-90-04-41461-7 (e-book)Copyright 2020 by Koninklijke Brill NV, Leiden, The Netherlands.Koninklijke Brill NV incorporates the imprints Brill, Brill Hes & De Graaf, Brill Nijhoff, Brill Rodopi, Brill Sense, Hotei Publishing, mentis Verlag, Verlag Ferdinand Schöningh and Wilhelm Fink Verlag.All rights reserved. No part of this publication may be reproduced, translated, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or otherwise, without prior written permission from the publisher.Authorization to photocopy items for internal or personal use is granted by Koninklijke Brill NV provided that the appropriate fees are paid directly to The Copyright Clearance Center, 222 Rosewood Drive, Suite 910, Danvers, MA 01923, USA. Fees are subject to change.This book is printed on acid-free paper and produced in a sustainable manner.