PLATE IV. PACK-ICE. 



FIG. 1. From a photograph by Mr FORD (Fo. 60, |-plate), Nov. 16, 1901, 

 S. lat. 62, E. long. 139. 



FIG. 2. From a photograph by K. W. SKELTON (Sk. 17, ^-plate), Nov. 16, 1901, 

 11 A.M., S. lat. 62, E. long. 139; showing the wake of the ship 

 through loose ice. 



A loose and weatherbeaten pack-ice is represented here, which the 

 ' Discovery ' met with when she first dipped south to the Antarctic Circle, on 

 her voyage from London to New Zealand. The digression was made for the 

 purpose of obtaining magnetic observations, and the ice which is here shown 

 lay 200 miles to the north of Adelie Land. It soon became so closely packed 

 as to prevent any rapid progress to the South. In character it was uniformly 

 small, broken, and water-logged, with edges upturned like pan-ice from the 

 constant jostling of piece with piece. There was an almost complete absence of 

 icebergs or large floes. Much of it was discoloured yellow and orange-red by 

 the inclusion of Diatomacece in its substance. See also Figure 2 of Plate III. 



