For many months I occupied one of their beds, half hammock, half framework, made of soft, flexible stuff that looked like metal, yet yielded like down. These beds were hung not only at the four corners, but along the two sides, so that the body lay in a kind of groove; yet, by a second series of rests, the material was kept from contact with the sides of the body or from any pressure upon it. Within this groove was laid an air-cushion of still softer and more elastic material, which fitted itself to every irregularity of the body and to its various changes of position. The pillow was of the same soft network, and so shaped as to fit the head. I afterwards found that through the whole fabric of the pillow passed a mild current of positive electricity, that drew the energy from the nerve-centres of the head, and soothed every tissue to rest. The framework of the lower portion of the bed was charged with the mildest currents of negative electricity, and thus the circulation and the life were kept up, however deep might be the sleep. The sense of exhilaration and replenished stores of energy with which I rose each morning was enough to make me enamoured of life. Day by day I grew lighter in step, and seemed to walk and rest on air. It was the grosser particles of my system that were being withdrawn from it by this nightly process of rest. I gained energy and lost weight till I felt that I could soon rise on wings. I noticed before long that I had acquired the tripping, elastic gait that I had remarked in Noola. My movements and footfall came to leave almost no impression on my senses, and I could have played the ghost with appalling effect in the superstitious atmospheres of my native land. I did not seem to grow much smaller in bulk; yet in a year or more I must have weighed one half what I did when I arrived. Whether they applied some other degravitating process to my bones and tissues besides the magnetic sleep I never ascertained. But they had the power of reducing their own weight considerably in a few moments. It seemed as if their bones were hollow like those of birds; for I could lift even the largest of them with my one hand; and they had some reserve store of an element lighter than air in their bodies, which they could increase and distribute over their system at will. When they were asleep I found I could raise them as lightly as a feather, but when awake they could, whether by muscular effort or by some other process of their bodies, prevent me lifting them even the fraction of an inch from the ground. They seemed able at a thought to increase their weight tenfold, and though they had wonderful strength of muscle, I am certain that was not all, for I observed they made little use of it on such occasions.