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ACADEMIC PRESS INC. (LONDON) LTD<br />
24-28 Oval Road,<br />
London :'\W I<br />
U.S. Edition published by<br />
ACADEMIC PRESS INC.<br />
Ill Fifth Avenue,<br />
New York, New York 10003<br />
Copyright© <strong>1977</strong> by ACADEMIC PRESS INC. (LONDON) LTD<br />
All Rights Reserved<br />
No part of this book may be reproduced in al!)' form by photostat, microfilm, or<br />
any other means, without written permission from the publishers<br />
Library of Congress Catalog Card Number: 76-1099<br />
/<br />
ISBN: 0-12-619660-5<br />
Text set in 11/12 pt. Monotype Baskerville, printed and bound<br />
in Great Britain by The Garden City Press Limited, Letchworth, Hertfordshire SG6 IJS<br />
Preface<br />
The stimulus to attempt a rev1s10n of this book arose from my<br />
attendance at the Sixth International Arachnological Congress<br />
at Amsterdam in 1974. I was fortunate to be able to communicate<br />
my inspiration to Academic Press, to whom my gratitude must be<br />
manifest.<br />
Several changes have seemed to be desirable, owing to the rapid<br />
advances in Arachnology during the past ten years, and I have<br />
dropped some sections in order to expand others. I have taken the long<br />
overdue step of promoting the Cyphophthalmi to higher rank, and<br />
have changed the former sequence of the other orders to bring them<br />
into closer representation of their probable phylogeny. I have given<br />
them the names that I tried to justify in Systematic ,Zoology in 1972.<br />
Since "Spiders, .Men and Scorpions" is now out of print I have restored<br />
the historical chapter to narrative form.<br />
In addition, Chapter 26 on the Acari has been written for me by<br />
Keith R. Snow and Chapter 30 on Economic Arachnology has been<br />
revised by .Martin H. ~Iuma. I am most grateful to these authors for<br />
thus helping me to conceal some of my ignorance. Further, I wish to<br />
thank the following for permission to make use of figures published by<br />
them: D.]. Curtis for Fig. 2, R. R. Jackson for Fig. 107, C. Juberthie<br />
for Figs 71-74, Max Vachon for Fig. 19, and Messrs Routledge and<br />
Kegan Paulfor Figs 80 and 81.<br />
Every reader will notice my indebtedness to my contemporaries, who<br />
are carrying out the researches that propagate our science. They are<br />
the true creators of this book, of wh!ch I have been the fortunate<br />
compiler, co-ordinator and interpreter, acting as the mouthpiece<br />
through which they have spoken. Their names are recorded below:<br />
their help, and often their friendship, have made my work an uninterrupted<br />
pleasure.<br />
Dorking, Surrey<br />
<strong>1977</strong><br />
T.H.S.
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