0-SROWLERS. 

 Wf-FltLD lot. 



GENERAL. CHART 



COVE.PINQ 



ICE PATROL 

 GRAND BANKS 



BERfeS THAT THREATENED U.S.-EUROPE 

 TRACKS IN \<iZS. ALSO BERG DRIFTS. 



Figure 12.— Po-:it!')n5 



•A ir-p),ert'? that approached or crossed the United States-Europe steamship trades in 1928, together with drift traok-s of all icebergs that the Ice Patrol was 



able to follow 33^^2-29. (Face p. 64.) No. 



