–from Shackleton’s account published as “South”–
“The land-ice seemed to be faced with ice-cliffs at most points, but here and there slopes ran down to sea-level. Large crevassed areas in terraces parallel with the coast showed where the ice was moving down over foot-hills. The inland ice appeared for the most part to be undulating, smooth and easy to march over, but many crevasses might have been concealed from us by the surface snow or by the absence of shadows.
“I thought that the land probably rose to a height of 5000 ft. forty or fifty miles inland. The accurate estimation of heights and distances in the Antarctic is always difficulty, owing to the clear air, the confusing monotony of colouring, and the deceptive effect of mirage and refraction. The land appeared to increase in height to the southward, where we saw a line of land or barrier that must have been seventy miles, and possibly was even more distant.”