Proctor, Richard A. (Richard Anthony), 1837-1888 · New York, A.C. Armstrong and son · leaf 179
ssibly be sure that the regions called con-tinents and seas do really consist of land and water ?At any rate, the doubt might well be entertained respect-ing the water. For land is a wide term, including allkinds of rock surface, sand, earthy soil, and so forth;but it may seem to require proof that… … THE PLAXET MAKS. r59 Very strange, then, at fnst must the statement seem,that we are as sure of the existence of water in all theseforms on Mars as if we had sent some messenger to theplanet who had brought back for study by our chemists ablock of Martian ice, a vessel full of Martian water, anda…
Astronomy
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