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The Optical Magic Lantern Journal (October 1893)

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viii. The Optical Magic Lantern Journal and Photographic Enlarger. STOCKS PATENT Oil Lamp « Optical Lanterns. This Lamp gives a magnificent white light,’aud is acknowledged to be far superior to any other lamp. By an ingenious arrangement the side projecting plates are so constructed that the light is condensed and placed more advantageously towards the condenser and reflector than in any other lamp. The draught can be accurately regulated by means of the rack and pinion on the chimney. The Reflector works on an entirely new principle, and can be placed exactly in focus with the con densers, and as it is outside the combustion chamber is not liable to become discolored when in use. The Lamp can be successfully used in rooms which become vitiated with impure air where other lamps smoke or fail to burn. The Perforated Screen adds to the steadiness of the flame by breaking up the current of air as it enters the back of the Lantern. The heat of the Lamp never causes the glass plates to crack. The Lamp is admirably adapted for use in enlarging lanterns, by placing a piece of finely ground glass close to the front glass of Lamp, Can be fitted to any Lantern in the place of ordinary lamp. Full instructions containing practical hints sent with each Lamp. Lamp has four 14% inch wicks. Price 28s / Thin Glass Plates for front of Lamp, price 6d. each. Mica Plates for back of Lamp, price 9d, each. CAN BE OBTAINED THROUGH ALL DEALERS IN LANTERNS AND SLIDES,