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PLATE LXVIII. ANTARCTIC ICEBERGS. 



FIG. 1 (Map A). From a photograph by L. C. BERNACCHI (Be. 150, ^-plate), 

 Jan. 9, 1902 ; off Cape Adare. 



FIG. 2 (Map A). From a photograph by R. W. SKELTON (S. 109, 5" x 4" plate), 

 Feb. 26, 1904 ; N. of Smith Inlet. 



The characteristics of an Antarctic iceberg are a flat top, perpendicular sides, 

 and a length and breadth excessive in comparison with its height. Such a berg 

 has been recorded with a length of 50 miles, and floating 400 feet above the water- 

 level ; but the generality are of far more modest measurements. They originate 

 as pieces broken from the free edge of the great Barrier ice-sheets. (See also 

 Plates LXIX. to LXXIV., representing various forms of berg and phases of 

 disintegration.) 



Scott, Voyage of the 'Discovery,' vol. ii., p. 408; Ferrar, Nat. Hist. Rep., 

 vol. i., p. 73. 



