TABLE OF CONTENTS 



Page 



Introduction 1 



Narrative of the nine cruises, April 1 to August 6 6 



Radio communications 25 



Summary report of the commander, international ice patrol 27 



Table of ice and other obstructions 81 



Weather 67 



Depth survey carried out by sonic methods 74 



Ice observation 75 



Charts of ice and ice drifts, 1929 82 



Problems of the ice patrol and how it attacks them 83 



Oceanography 93 



Oceanographic charts 122 



Table of oceanographic station data 135 



(III) 



