"The expedition vessels during the early summer days in McMurdo Sound lie against the bay ice in a patchwork of color schemes. The colors represent merely a complication of some of the profusion of moods that succeed one another in that world of whiteness. But whiteness is never white - it is the vehicle for reflecting the higher keys in the discernible color range and these can have a profound psychological effect on the visitor to Antarctica." --Commander Standish Backus.