The writer takes exception to Mr. Taylor’s statement that the figures when examined by the stereoscope were absolutely flat; because “the figures were solid enough to obscure a view of the sitting medium when they stood between him and the camera.” That is, Mr. Gass knows all about solidity, and what could or could not be done by what Mr. Taylor is careful to call a “psychic entity.” That there is any appearance of light and shade in the engraving as it is in the _Review of Reviews_ proves nothing; even if it is there, we have Mr. Taylor’s assertion that in the photograph he examined with the stereoscope the “psychic figure was absolutely flat.” As to the nonsense about the clothing of the figures and the draper’s shops in Ghost-land we have nothing to say. Mr. Gass then falls foul of photographs being taken without the employment of a lens. Such a thing would be a miracle. So Mr. Gass knows what a miracle is. “To obtain a portrait on a plate, light is imperatively necessary, and to obtain an image of a figure it must be brought into focus by the lens of a camera.” Of course, if these things “must” be so, there is an end of the matter, but the experiment went to disprove the necessity of this “must.” And what is “light”? Has Mr. Gass any knowledge of the spectrum, and could he himself “see” the actinic rays which produce the pictures on the sensitised plate? _From the “TWO WORLDS” March 24th, 1893._[12] Mr. Taylor is, perhaps, the most competent and reputable man who, as an experienced and scientific photographer, has undertaken such experiments, hence his testimony is all the more valuable. The medium was Mr. David Duguid, and the results are of great importance. Mr. A. Glendinning, who brought about the sittings, deserves the thanks of all Spiritualists. GHOSTS AND THEIR PHOTOGRAPHS.[13] _By_ THE REV. H. R. HAWEIS, M.A. “I suppose there is nothing more difficult than for scientific people to realise that the dead are living.”—Rev. H. R. HAWEIS, M.A.