TT 70-50083 



Published Pursuant to an Agreement with 



THE SMITHSONIAN INSTITUTION 



and 



THE NATIONAL SCIENCE FOUNDATION, WASHINGTON, D. C. 



Copyright © 1971 



Israel Program for Scientific Translations Ltd. 



IPST Cat. No. 5725 



Translated by A. Mercado 

 Edited by Prof. O. Theodor 



Printed in Jerusalem by Keter Press 

 Binding: Wiener Bindery Ltd., Jerusalem 



Available from the 

 U.S. DEPARTMENT OF COMMERCE 

 National Technical Information Service 

 Springfield, Va. 22151 



XI/7/3 



