THE year 1834 is famous for the production of the earliest recorded photograph on paper. This was the work of Henry Fox Talbot, who used paper sensitised by means of silver chloride. Fox Talbot's extensive investigations may be said to have laid the foundations of modern photography. The in ventor and his work are briefly described in the Photographic Journal (August 1934, pp. 427-435). An exhibition celebrating this centenary of photo graphy is now to be seen at the Gallery of Messrs. Elliott and Fry, Ltd., 63 Baker Street, London. The collection includes a copy of Talbot's book, “The Pencil of Nature”, written in 1843, the first book to be illustrated with photographs. Several original prints, including one of Trafalgar Square without the Nelson Monument, and one original paper negative are shown. Talbot was a very close friend of Sir William Herschel, and the early progress of photo graphic inventions owed much to the suggestions of the latternotably one made on January 30, 1839, that ‘hypo’ should be used to fix the photo graphic records.