Catalogue of Optical Projection Apparatus. (September 1938)

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OPTICAL LANTERNS, ETC. Illuminants Not Electric A number of Lanterns can be fitted with many of the illuminants specified below. Owing to the comparatively small sale of such fittings, however, it is advisable to confirm prices before ordering, and also it is most desirable to ascertain that the Lantern will accommodate the fittings it is contemplated to instal. 1301 4-Wick “Newtonian” Oil Lamp, with- Chimney and Reflector. Suitable for Lantern Type A2 ... £3 0 0 1302 Cotton Wicks, 2in. wide, for “ Newtonian ” 4-wick Lamp, per dozen 4/6 1303 Glasses, curved, for above Lamp ... ... each 8d. l330 “ Newtonian ” Acetylene Generator ... £5 0 0 1335 High-Power Acetylene Jet, with four burners £ I 17 6 1336 Flexible Metal Tubing, with Rubber Connections £0 4 6 l357 “ Injector ” Limelight Jet. 1380 Beard’s Automatic Regulator {Oxygen or Hydrogen). 1381 Pressure Gauge. Cyn Cylinder Key, Double Lever Pattern. l420 Lantern Tray, to carry Jet. Mabor Lime Cylinders, per box of six. lin., 2/6; Hin., 3/6 NEWTON & CO., 72 WIGMORE STREET, LONDON, W.l 22