THE ICE. 261 



The numerous illustrations of this work, derived 

 from the Challenger, are admirable representations of 

 these wonderful floating masses of ice in the Antarctic 

 regions, whilst those illustrations which are taken from 

 Dumont d'Urville's work exhibit the jagged forms of 

 icebergs that have undergone considerable destruction. 



The extreme northern limits reached by the Ant- 

 arctic icebergs are indicated in the annexed map ; they 

 lie about latitudes 40° to 50° S. We possess, however, 

 reliable information only about the regions which are 

 regularly visited. In the Atlantic these limits penetrate 

 farthest north ; occasionally the last fragments of icebergs 

 have been met near the Cape of Good Hope. 1 On the 



Iceberg seen on 21st February, 1874 (after the Challenger Reports). 



other hand, this limit is subject to a noticeable inter- 

 ruption near Kerguelen and Heard Islands. It seems 

 that the west wind drift current, being turned aside by 

 the bank connecting the two islands, travels to the 

 south-east over a wide expanse o\ surface and presses 

 the icebergs backwards. It thus counteracts the cur- 

 rent presumably parallel to or setting out from Wilkes 

 Land, and thus brings about the colossal accumulation 



1 Whilst these pages were going through the press I have received 

 the new and surprising intelligence (G. Schott, D. Ozeanographie i. d. 

 Jahren 1895-96 ; Hettner's Geogr. Zeitschr., iv., p. 46) that a piece of 

 ice was seen on the 30th of April, 1894, in lat. 2 6°3o' S. and long. 

 25°4o' W. — The Translator. 



