title: Euclid in Greek: Volume 1: Book I
author: Sir Thomas L. Heath
description: This 1920 volume contains book one of Euclid's Elements in Greek, together with an introduction and notes written in English. It was created to provide young students with a contextual understanding of geometry and the development of geometrical principles, one which was increasingly neglected in the standard school textbooks of the time.
zlib_text: ![cover](images/cover.jpg)
  
  
  THE THIRTEEN BOOKS OF EUCLID’S ELEMENTS
  
  
  **TRANSLATED FROM THE TEXT OF HEIBERG**
  
  
  WITH INTRODUCTION AND COMMENTARY
  
  
  **BY**
  
  
  SIR THOMAS L. HEATH,
  
  
  **K.C.B., K.C.V.O., F.R.S.,**
  
  
  **SC.D. CAMB., HON. D.SC. OXFORD**
  
  
  **HONORARY FELLOW (SOMETIME FELLOW) OF TRINITY COLLEGE CAMBRIDGE**
  
  
  _SECOND EDITION REVISED WITH ADDITIONS_
  
  
  VOLUME II
  
  
  BOOKS III—IX
  
  
  DOVER PUBLICATIONS, INC.
  
  
  NEW YORK
  
  
  **This Dover edition, first published in 1956, is an unabridged and unaltered
  republication of the second edition. It is published through special
  arrangement with Cambridge University Press.**
  
  
  _International Standard Book Number 13: 978-0-486-15819-8_
  
  
  **_Library of Congress Catalog Card Number: 56-4336_**
  
  
  Manufactured in the United States by Courier Corporation
  
  
  60089027
  
  
  [www.doverpublications.com](http://www.doverpublications.com)
  
  
  **CONTENTS OF VOLUME II.**
  
  
  [Book III.DEFINITIONS.](Chapter3.html)
  
  
  [PROPOSITIONS.](Chapter3.html#sec1)
  
  
  [Book IV.DEFINITION