Science in History Volume 3: The Natural Sciences in Our Time

Penguin Books Ltd, Harmondsworth, Middlesex, England Penguin Books Australia Ltd, Ringwood, Victoria, Australia

First published by C. A. Watts & Co. Ltd, 1954 Third edition 1965 Illustrated edition published simultaneously by C. A. Watts & Co. Ltd, and in Pelican Books 1969 Copyright © J. D. Bernal, 1965, 1969

Designed by Gerald Cinamon Made and printed in Great Britain by offset litho at Taylor Garnett Evans & Co. Ltd, Watford, Herts Set in Monotype Times

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