TABLE OF CONTENTS 



Page 



The Inauguration of the International Ice Patrol vi 



The organization and duties of the International Ice Patrol 1 



The first cruise, Tampa, March 23-April 9 5 



The second cruise, Modoc, April 9- April 24 8 



The third cruise, Tampa, April 24-May 8 14 



The fourth cruise, Modoc, May 8-May 23 18 



The fifth cruise, Tampa, May 23-June 8 21 



The sixth cruise, Modoc, June 8-June 25 24 



The seventh cruise, Tampa, June 25-July 9 29 



The eighth cruise, Modoc, July 9-July 12 32 



Report of the ice-patrol commander 33 



Ice observations. (Ice drift for each cruise is covered by the cruise report) _ 36 



Sonic depth finder report 45 



Charts showing soundings facing 90 



Radio communication 51 



Miscellaneous data, birds, radiocompass, etc 61 



The salinity apparatus 67 



Station table, cruise of 1925 69 



Ice and obstruction reports, cruise of 1925 73 



Wind diagram and resume 80 



Surface temperature charts, cruise of 1925 facing 90 



Current chart facing 90 



Station table, cruise of 1924 . 81 



(V) 



