But they would possess far more physical strength than we do, while, in doing work, they would have much lighter materials to deal with.
Whether the theory that the canals of Mars really are canals is true or not, at any rate there can now be no doubt as to the existence of the strange lines which bear that designation.

The suggestion has been offered that their builders may no longer be in existence, Mars having already passed the point in its history where life must cease upon its surface.

This brings us to consider again the statement, made near the beginning of this chapter, that Mars is, perhaps, at a more advanced stage of development than the earth.

If we accept this view, then, provided there was originally some resemblance between Mars's life forms and those of the earth, the inhabitants of that planet would, at every step, probably be in front of their terrestrial rivals, so that at the present time they should stand well in advance.

Mr.Lowell has, perhaps, put this view of the relative advancement in evolution of Mars and its inhabitants as picturesquely as anybody.
"In Mars," he says, "we have before us the spectacle of a world relatively well on in years, a world much older than the earth.