Mr. J.R. Thompson then read a paper on Photographic Transparencies; in which he dealt with the various methods of making transparencies upon photographic plates and papers referring more particularly to those prepared with Cowan’s Gelatino-Chloride & Alpha Plates.

The results obtained were extremely beautiful & Mr. Thompson had adopted a very effective plan for showing these. This consisted of two small wooden screens made to fold & so arranged as to enclose a Paraffin Lamp with an opal globe. In the upper part of the screen & on a level with the source of light, spaces were left in which the pictures could be placed & removed at will. By varying the exposure & adapting the developer to this variation a wide range of colour from black to a warm or even bright red could be obtained & thus the most suitable tone of each subject became a matter of early choice. The Developer recommended was Hydroquinone with Gold after toning if thought necessary. The Exposure were made with Magnesium Ribbon. The show how simple & easy the process was to work. Mr. Thompson gave a demonstration which was watched with much interest by the members present.