| http://www.w3.org/ns/prov#value | - And it is well that nature has so graciously and abundantly lighted the Martian night, for the green men of Mars, being a nomadic race without high intellectual development, have but crude means for artificial lighting; depending principally upon torches, a kind of candle, and a peculiar oil lamp which generates a gas and burns without a wick.This last device produces an intensely brilliant far-re
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