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PLATE LXXXIIL SHORE ICE-CLIFFS. 



FIG. 1 (Map B). From a photograph by E. H. SHACKLETON (Sh. 202, |-plate), 

 Mar. 1902 ; looking E. from the sea-ice of M'Murdo Sound towards the 

 western shore of Winter-quarters Peninsula. 



FIG. 2 (Map B). From a photograph by E. H. SHACKLETON (Sh. 175, -plate), 

 Oct. 1902 ; looking E. to Castle Rock from the sea-ice of M'Murdo Sound. 



FIG. 3 (Map A). From a photograph by E. H. SHACKLETON (Sh. 43, ^-plate), 

 Jan. 15, 1902 ; showing the ice-cliff of Lady Newnes piedmont-glacier, and 

 a " rookery " of Weddell Seals on sea-ice in the inlet. 



In each of these three pictures is represented a high ice-cliff forming the edge 

 of the land-ice where it abruptly terminates in the sea. At the foot of these cliffs 

 in every case is to be found a tide-crack, separating the land-ice from the floating 

 sea-ice. This is well shown in Fig. 2 of Plate XXVIII. and in Fig. 1 of Plate 

 LXXXII. The height of these cliffs may reach between 200 and 300 feet, or 

 they may be as low as 3 feet ; it appears to vary with the depth of the water 

 beneath them, as with cliffs of rock. 



