the world, begotten in that eternal mind where past, present and future coexist, and from which they stray into the imagination of scientist, engineer or poet to be out-realised in discovery, mechanism or song? I find it impossible to decide. Sometimes I even speculate on a world interpenetrating ours where another sun is glowing, and other stars are shining over other woods, mountains, rivers and another race of beings. And I know not why it should not be so. We are forced into such speculations when we become certain that no power in us of which we are conscious is concerned in the creation of such visionary forms. If these ships were launched so marvellously upon the visionary air by some transcendent artisan of the spirit they must have been built for some purpose and for what? I was not an engineer intent on aerial flight, but this is, I think, notable that at the moment of vision I seemed to myself to understand the mechanism of these airships, and I felt, if I could have stepped out of this century into that visionary barque, I could have taken the wheel and steered it confidently on to its destiny. I knew that the closing of a tube at one side of the bow would force the ship to steer in that direction,
