56° 55° 54° 53° 



57° 56 55° 54° 53° 52° 51° 50° 49° 48° 47° 46° 



FiouRE 3. — Ice conditions, April 1947. Figures indicate day of month ice was sighted or reported. 



45" 44° 43° 



827714 O - 49 (Face p, 24) No. 3 



