"My next consideration was the supply of air. I think we shall find that the whole planetary system is pervaded with an atmosphere so rare, in some parts of remotest space, as to remain undetected by any instrument yet known to science, but still of sufficient density to offer resistance and lend support to our carriage and its propellers. My condensers are so formed that they will readily convert this ether into air suited to man's requirements. "I had now but one more task to overcome--food and water. As regards food, I have here a little cake of animal and vegetable substances which have undergone a certain chemical process, by means of which I have been able to compress enough food to support a human being for three days into a space not quite two cubic inches in extent. In this other tablet I have dealt with wheaten flour in a similar satisfactory manner. Tea, sugar, and other luxuries I can reduce to the smallest proportions by a process of condensation and hydraulic pressure. So that I can stow away in the store-room of my carriage enough food to last six persons for nearly three years--a more than ample supply, as I intend shortly to demonstrate. "It has taken me nearly ten years to solve the problem of my water supply. I have here a small electrical apparatus, by means of which I hope to be able to distil water from ether. Should my experiment fail, I have invented a small lozenge of soda and other chemicals, which will allay thirst. I must also say that I have allowed sufficient space for scientific instruments, a stock of methylated spirits, a selection of books, firearms, and ammunition: nor have I omitted clothes, cigars, tobacco, a few bottles of wine to be used on state occasions, and a fair quantity of brandy and whiskey, so that you, Temple, shall not be without your grog. A medicine chest, camera, and india-rubber boat are also included in my list of necessaries. I calculate that my air-carriage will be about forty feet in height, and nine feet in width. What I have disclosed is but a portion of my grand scheme, the one great work of my life, from which I hope to obtain the most brilliant scientific results. "The planet Mars will reach his perihelion, or nearest distance to our Earth, in October, 1877. He is then in an unusually favourable position, and affords us a chance of visiting him, which will not occur again in a lifetime. Now, I calculate that our rate of speed will be fifteen hundred miles per hour, so that the thirty-four millions of miles we have to traverse will be accomplished in about two and a-half years' time. We must leave Earth, therefore, not later than the first day of May, 1875. Our stay, of course, will depend on circumstances, which no mortal man can foresee. We may, indeed, reach our destination in much less time than I have anticipated.