are quite different from any photograph she ever had taken in life. She certainly never was photographed enveloped in white drapery, nor do I believe that Mr. B-- had any negative of any of her portraits in his possession. But I fully admit that from the point of view of one who wishes to exclude every possibility of error, the fact that Mrs. M-- had been frequently photographed in her lifetime by the same photographer renders it impossible to regard these photographs as conclusive testimony as to their authenticity as a photograph of a form assumed by a disembodied spirit. I have mentioned that on the fourth plate there appeared a portrait of an unknown female. On my return I was showing the print of this shadow picture to a friend when she startled me by declaring that the shrouded form which appeared behind me in the photograph was a portrait of her mother who had died some months before in Dublin. I had never seen her mother, my friend did not know of her existence, neither did the photographer, nor does he to this day. It was only many months afterwards that I was able to obtain a photograph of my friend's mother, but it was taken when she was a comparatively young woman and bore no manner of resemblance to the portrait of the lady who appeared behind me. Her daughter, however, had not the slightest hesitation in asserting that it was her mother, that she had recognized her instantly, and that it was a very good portrait of her as she appeared in the later years of her life. This startled me not a little, and convinced me that I had a good prospect of attaining some definite results as an outcome of my experiments. "Mr. B--, encouraged by this success, was willing to continue his experiments, and this time I insisted upon paying him for his work.