24 ICE OF NORTHEEN HEMISPHEBB 



254. U. S. Hydrographic Office. 



1944. Arctic ice and its drift into the North Atlantic Ocean. 8th 



ed. Pilot chart N. Atlantic Apr. Also issued as 1 sheet 

 suppl. 



255. U. S. Navy Department. Bureau of navigation. 



1868 . Memoir of the dangers and ice in the North Atlantic Ocean . . . 



Washington. 32 p. fold, chart. ["Ice in the North At- 

 lantic", by W. C. Redfield. pp. 12-19. 1 chart.] 



256. Vallaux, Camille. 



1926. Le danger des icebergs sur les routes maritimes de I'Atlan- 



tique nord. Mater, ^tude calam. 2:283-305. 



257. Vallaux, Camille. 



1931. Ice observations and patrol in the waters of Newfoundland 



in 1929. Hydrogr. rev. 8(1) :59-69. 



258. Wheeler, E. P., 2d. 



1935. The Nain-Oak section of Labrador. Geogr. rev. 25:240-254. 



259. Wright, G. F. and Warren Upham. 



1896. Greenland icefields and life in the North Atlantic . . . New 



York, Appleton. xv, 497 p. illus., maps. 



SEE ALSO: 1, 3, 269, 295, 297, 310, 1658, 1662, 1663. 



