SPIRIT PHOTOGRAPHY.   [Illustration: FIG. 16.--A "SPIRIT" PHOTOGRAPH.] Many years ago, in the old wet-collodion days, a well-known photographer was one day surprised by the visitation of a spirit. The apparition…

MAGIC PHOTOGRAPHS. [Illustration: FIG. 14.--CIGARETTE TUBE FOR MAGIC PHOTOGRAPHS.] Take an ordinary silver print and fix it without toning. Thoroughly well wash it to remove all traces of the fixing solution…