A number of test séances for spirit photography had been held with Mr. David Duguid, of which no records have been kept, but in April and May, 1892, four séances were held under strict test conditions, notes of which were made at the time, and signed by the various persons who were present. These notes were printed for private circulation, and a copy was sent, with some of the photographs, to Mr. Frederic W. H. Myers, Cambridge, (Hon. Secretary Psychical Research Society). He suggested that when there was another opportunity for a test séance, the presence of a “scientific man,” and some one well acquainted with photographic manipulations, be got to attend to watch the experiments. One of the investigators induced Mr. Duguid to come to London to give a séance under the strictest test conditions which could be devised; and Mr. J. Traill Taylor, Editor of the _British Journal of Photography_, by special request consented to take charge of the experiments, and to fix the conditions under which they should be made. Mr. Taylor combines in himself the special qualities named by Mr. Myers, inasmuch as he is a “scientific man,” and an expert in photographic chemistry, optical research, and all photographic manipulations.[1] Mr. Taylor is the author of several works relating to the chemistry, optics, physics, and practice of photography; and besides being a member of Council of the Photographic Society of Great Britain, is an honorary member of the Imperial Polytechnic Society of Russia, and of all the leading Photographic Clubs and Societies in London, and of several in New York. _TESTIMONY RELATING TO DAVID DUGUID._ In a book recently published, entitled _The Rise and Progress of Modern Spiritualism_[2] (consisting of a reprint of a course of lectures delivered in Glasgow by Mr. James Robertson), the author gives the following testimony as to Mr. Duguid:—