haze in, [94].
S.S. Challenger, concerning south polar cap of earth, [45].
S.S. Pagoda, [45].
Subsidiary snow patches, [67], [73].
Summer, Martian, length of, [35], [48], [381].
Surface, relatively flat, [62], [76], [97], [164];
covered by canal network, [243];
clear-cut in good air, [258];