CONTENTS 



Page 



Foreword iii 



Distribution List. , Iv 



A. Introduction ...,...«,.,.,....,,,,, 1 



B. A Theory of Polar Pack History as Applied to the Alaskan 



Area 1 



C. Economy of Polar Ice ....»,.....,,,... . 4 



D. Some Characteristics of the Polar Pack . „ , 6 



E. Forecasting and the Polar Pack „ , , 8 



Bibliography ..,» .o .....,«.,,,, 13 



TABLES 



Table 1 .. .o .....«.,..,... , 10 



Table 2 ............ c ,, c „« o .<,..., » 11 



