X FOREWORD 



The committee acknowledges gratefully the encouragement and financial 

 support received from the NATO Advanced Study Institutes Programme, 

 which made possible both this symposium and the publication of this book. 

 It is also indebted to the University of Iceland and the Museum of Natural 

 History, under whose auspices the symposium was organized. Its gratitude is 

 also extended to the Pergamon Press for valuable assistance in editing the 

 papers, and to Miss Virginia Weadock, who had the task of correcting the 

 language of the foreign manuscripts. Last but not least all the contributors 

 are to be thanked for having given of their time and experience to make this 

 venture possible. 



Montreal, August 1962 Askell Love 



Doris Love 



