MARK TWAIN terious trips—but I am acquainted (dimly) with nw spiritualized self and I know that it and I are one, be- cause we have common memory; when I wake mornings I remember that it (that is, /) have been doing, and whither it (that is /) have been wandering in the course of what I took to be unreality and called Dreams, for want of a truthfuler name. Now, as I take it, my other self, my dream self, is merely my ordinary body and mind freed from clogging flesh and become a spiritualized body and mind and with the ordinary powers of both enlarged in all particulars a little, and in some particulars prodigiously. For instance, to the ordinary vision, the vision of the X-ray is added—the invisible ray—and I am able to use it and see through opaque bodies. You have an instance of this in the biography of Agassiz. In a dream he saw through the stone that contained a fossil shell and woke up and drew a picture of that shell; and when he broke open the stone his picture was correct. Waking I move slowly; but in my dreams my unham- pered spiritualized body flies to the ends of the earth in a millionth of a second. Seems to—and I believe, does. Waking I cannot form in my mind the minutely de- tailed and living features of a face and a form and a costume which I have never seen, but my dream self can do all this with the accuracy and vividness of a camera. Waking, I cannot create in my mind a picture of a room and furniture which I have not recently seen, or have never seen; but my dream self can do this to the minutest detail. My dream self meets friends, strangers, the dead, the living—all sorts and kinds of dream people—and holds both rational and irrational conversations with them upon subjects which often have not been in my waking mind and which, in some cases could never have been in it And these people say things to me which affect me in all 350