. t Kerosene Oil. (A small quantity of Gum Camphor, in coarse powder, thoroughly and uniformly dissolvedm the Kerosene will increase the intensity of the light.) 2. Pour sufficient oil into the Reservoir, to come within quarter of an inch of the top, leaving that space for the expansion of the oil. 3. Trim the wicks evenly with a sharp pair of Scissors. (See Lamp Scissors page 46.) 4. Light the Lamp a few minutes before commencing the exhibition, and allow it to burn rather low, that the oil may become gradually warmed and thereby re
. t Kerosene Oil. (A small quantity of Gum Camphor, in coarse powder, thoroughly and uniformly dissolvedm the Kerosene will increase the intensity of the light.) 2. Pour sufficient oil into the Reservoir, to come within quarter of an inch of the top, leaving that space for the expansion of the oil. 3. Trim the wicks evenly with a sharp pair of Scissors. (See Lamp Scissors page 46.) 4. Light the Lamp a few minutes before commencing the exhibition, and allow it to burn rather low, that the oil may become gradually warmed and thereby renderedmore fluid. 5. When commencing to operate, turn the wicks up slowly, until an intense flame is obtained, free from smoke. The exact condition of the wicks can be readily seenat any moment by slightly opening the door of the Lantern and observing thereflection of the flame on the surface of the Condensing Lens. Geo. H. Pierce. Philadelphia, Pa. PHANTASMAGORIA MAGIC LANTERNS. aiAKING CLBARLV DEFINED VIEWS OF ANY DESIRED SIZE UP TO EIGHT FEET IN In the Magic Lantern as originally constructed, the condensing lens was formea ofa single buWs-eye lens, and the object glass of a single double-convex lens. The cheaptoy Lanterns imported from Europe, are still generally made in that manner; but allfirst-class instruments are now made with two condensing lenses and two object-glasses,and, to distinguish them, are called Phantasmagoria Lanterns. The wordphantas-magoiia is of Greek de?ivation^nd means I meet a spectre; and was at first appliedto the exhibition of pictures of ghosts and hobgoblins, which appear to recede from orapproach to the audience, by the Lanterns being brought gradually nearer to, or fartherfrom, the Screen. See instructions on page 33 No. 650. Phantasmagoria Magic Lantern, Japanned case, ten by eight inches square, sixteen inches high, hinged door atside and sliding door at back ; first quality plano-convex Condensing Lenses, 4finches diameter; concaY
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Keywords: ., bookcentury1800, bookdecade1880, booksubjectproject, bookyear1888
