232 



CHAPTER X. 



AMONGST THE SOUTHEEN ICE. 



First Iceberg Sighted. Typical Forms of Southern Bergs. Preservation 

 of Equilibrium. Wash Lines. Caverns. Bi-tabular Bergs, How 

 Formed. Weathering of Bergs. Stratification of Ice in Bergs. 

 Cleavage. Scarcity of Rocks on Bergs. Discoloured Bands in the 

 Ice. Rev. Cauon Moseley on the Motion of Glaciers. Colouring of 

 Bergs. Blue Berg. Surf on the Coasts of Bergs. Scenic effects of 

 Icebergs. Appearance of the Pack Ice. Discolouration of Ice by 

 Diatoms. Gales of Wind amongst the Icebergs. Snowbow. Whales 

 Blowing. Grampuses. Birds amongst the Ice. Antarctic Climate 

 in Summer. 



Amongst the Southern Ice, February 8th to March 4th, 1814. — 



From Heard Island we ran nearly due south for six days, 



FIRST ICEBERG, SIGHTED FEBRUARY IOtH. 



(From a sketch by Lieut. H. Swire, R.N.) 



approaching the Antarctic Circle at an average rate of about 

 115 miles a day. The first iceberg was sighted on February 10th, 



