The Certainty of a Future Life in Mars

bly by the blue rays." In heating and cooking by electricity my father had made some progress though he had not in 1880 employed his time in this direction.

Perhaps more remarkable than anything else presenting my father's great scientific ingenuity was his improvements of the dynamo and the invention of a new successful small traction engine.

In 1880 the complete distinction between alternating and direct currents had not been made, and the device of a successful converter, for the change of the former comparatively inert to the latter's dynamic condition, only dreamed of. Yet in my father's notebook I find this suggestive sentence: "It seems possible to devise an apparatus which would deliver from an alternating circuit a direct current to a direct current circuit."

I have dwelt somewhat upon my father's scientific acquirements and genius in order to impress upon the reader the strictly legitimate training I received in scientific procedure, and I have instanced somewhat the status of his scientifi