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

CHAPTER IV.

Chapter 451 wordsPublic domain

IS ANIMAL LIFE POSSIBLE ON MARS? --Water and air essential for animal life --Atmosphere of Mars assumed to be like ours --Blue tint near melting snow the only evidence of water --Fallacy of this argument --Dr. Johnstone Stoney's proof that water-vapour cannot exist on Mars --Spectroscope gives no evidence of water.