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A PRISONER bosom no Martian has ever returned, or would be allowed to live did he return after once embarking upon its cold, dark waters.

Only about one Martian in a thousand dies of sickness or disease, and possibly about twenty take the voluntary pilgrimage. The other nine hundred and seventy-nine die violent deaths in duels in hunting in aviation and in war; but perhaps by far the greatest death loss comes during the age of childhood, when vast numbers of the little Martians fall victims to the great white apes of Mars.

The average life expectancy of a Martian after the age of maturity is about three hundred years, but would be nearer the one-thousand mark were it not for the various means leading to violent death. Owing to the waning resources of the planet it evidently became necessary to counteract the increasing longevity which their remarkable skill in therapeutics and surgery produced, and so human life has come to be considered but lightly on Mars, as is evidenced by their dangerous sports and the almost continual warfare between the various communities.

There are other and natural causes tending toward a diminution of population, but nothing [37]