Is Mars habitable? A critical examination of Professor Percival Lowell's book "Mars and its canals," with an alternative explanation

by Alfred Russel Wallace

CHAPTER III.

THE CLIMATE AND PHYSIOGRAPHY OF MARS,
—No permanent water on Mars
—Rarely any clouds and no rain
—Snow-caps the only source of water
—No mountains, hills, or valleys on Mars
—Two-thirds of the surface a desert
—Water from the snow-caps too scanty to supply
the canals
—Miss Clerke's views as to the water-supply
—Description of some of the chief canals
—Mr. Lowell on the purpose of the canals
—Remarks on the same
—Mr. Lowell on relation of canals to oases and
snow-caps
—Critical remarks on the same.