Hall's illustrated catalogue of magic lanterns, dissolving lanterns, and stereopticons : for societies, parlor entertainment, panoramas, and public exhibitions. (1873?)

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16 hall's illustrated catalogue of in motion by a quarter turn of the key at the right, until about an inch of ribbon is run through ; then stop the movement, and light the end of the ribbon, through the opening in front, with a match held in the left hand, with the right hand hold of the key, in readi- ness to start the movement the instant it is lighted. Then close the door at the back. No. 17. The Cover with Reflector. 4. The speed of the lamp is regulated by gently turning the wings of the fan, so as to increase or diminish the atmospheric resistance. 5. The full power and best effect of the light are produced when the lamp is so regulated that the flame extends from three fourths of an inch to one inch below the upper pair of rollers. It must in no case be allowed to extend below the lower pair. 6. Keep the lamp well wound up, and frequently oil the bearings. *T. The smoke of the lamp may be conveyed away to a chimney- flue, or through an opening prepared at the top of a window, by an extension tubing, furnished in any required length, at a moder- ate price. 8. To fill the reels with ribbon, place the box of ribbon flat, and hold it firmly on a table ; then, with a sharp knife, carefully