ON THE EDGE OF AN ICE RAVINE, ADELIE LAND 
‘‘The difficulties of exploration in cold regions approximate to the limit of human endurance and often 
enough exceed it."" Bridges of soft snow over the crevasses of the glacier may give way, 
opening up gaping holes into the darkness of chasms below. ‘.. . I seemed 
to stand alone on the wide shores of the world. . . . 
