This gloriously colored, double-sided folded sheet, published by the British Antarctic Survey BAS (Misc) 12A and 12B, shows the topography of the island on one side and a composite satellite image at the same 1:200,000 scale on the reverse. Shackleton's crossing, spot elevations, contour lines, geographical features, glaciers and historic settlements are all depicted. Topography and satellite images are drawn from Landsat images.  (ANT221, $24.95)