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

CHAPTER VII.

Chapter 779 wordsPublic domain

A SUGGESTION AS TO THE 'CANALS' OF MARS, --Special features of the canals --Mr. Pickering's suggested explanation --The meteoritic hypotheses of origin of planets --Probable mode of origin of Mars --Structural straight lines on the earth --Probable origin of the surface-features of Mars --Symmetry of basaltic columns --How this applies to Mars --Suggested explanation of the oases --Probable function of the great fissures --Suggested origin of blue patches adjacent to snow-caps --The double canals --Concluding remarks on the canals.