In looking around me for some subject by whose means I might test these particulars, I was brought to think of my friend, M. Ernest Valdemar, the well-known compiler of the “Bibliotheca Forensica,” and author (under the nom de plume of Issachar Marx) of the Polish versions of “Wallenstein” and “Gargantua.”  M. Valdemar, who has resided principally at Harlaem, N.Y., since the year 1839, is (or was) particularly noticeable for the extreme spareness of his person —­ his lower limbs much resembling those of John Randolph; and, also, for the whiteness of his whiskers, in violent contrast to the blackness of his hair —­ the latter, in consequence, being very generally mistaken for a wig.  His temperament was markedly nervous, and rendered him a good subject for mesmeric experiment.  On two or three occasions I had put him to sleep with little difficulty, but was disappointed in other results which his peculiar constitution had naturally led me to anticipate.  His will was at no period positively, or thoroughly, under my control, and in regard to clairvoyance, I could accomplish with him nothing to be relied upon.  I always attributed my failure at these points to the disordered state of his health.  For some months previous to my becoming acquainted with him, his physicians had declared him in a confirmed phthisis.  It was his custom, indeed, to speak calmly of his approaching dissolution, as of a matter neither to be avoided nor regretted.

When the ideas to which I have alluded first occurred to me, it was of course very natural that I should think of M. Valdemar.  I knew the steady philosophy of the man too well to apprehend any scruples from him; and he had no relatives in America who would be likely to interfere.  I spoke to him frankly upon the subject; and, to my surprise, his interest seemed vividly excited.  I say to my surprise, for, although he had always yielded his person freely to my experiments, he had never before given me any tokens of sympathy with what I did.  His disease was if that character which would admit of exact calculation in respect to the epoch of its termination in death; and it was finally arranged between us that he would send for me about twenty-four hours before the period announced by his physicians as that of his decease.

It is now rather more than seven months since I received, from M. Valdemar himself, the subjoined note: 

My DEAR P —­ ,

You may as well come now.  D —­ and F —­ are agreed that I cannot hold out beyond to-morrow midnight; and I think they have hit the time very nearly.

VALDEMAR