. The art of projecting. A manual of experimentation in physics, chemistry, and natural history, with the porte lumière and magic lantern. ACVEBDMCfilL. Fig. 9. of the transverse section of it. The objective repre-sented is also compound. This form of lantern is made i8 THE ART OF PROJECTING. by George Wale & Co. at the Stevens Institute, Hobo-ken, N. J., and called the Experimenters Lantern, be-cause of its adaptability to many kinds of experimentalwork, as well as to the exhibition of photographic trans-parencies. Mr. L. J. Marcy, of Philadelphia, has, in an ingen-ious manner, made a lantern
. The art of projecting. A manual of experimentation in physics, chemistry, and natural history, with the porte lumière and magic lantern. ACVEBDMCfilL. Fig. 9. of the transverse section of it. The objective repre-sented is also compound. This form of lantern is made i8 THE ART OF PROJECTING. by George Wale & Co. at the Stevens Institute, Hobo-ken, N. J., and called the Experimenters Lantern, be-cause of its adaptability to many kinds of experimentalwork, as well as to the exhibition of photographic trans-parencies. Mr. L. J. Marcy, of Philadelphia, has, in an ingen-ious manner, made a lantern jet which can be usedwith alcohol, common gas, or hydrogen, to produce thelime light. He calls it the triple jet. The engrav-ing (Fig. 9) shows the lantern in section. L beingthe disk of lime, the gases ignited at w. This lanternis compact, light, and has a veryconvenient arrangement for hold-ing slides, tanks, and so forth. The oil lanterns have variousnames given to them by differentmakers, such as magic lanterns,lamposcopes, sciopticons, and so. mg. 10. on. Fig. 10 represents the new form, the Sciopticon,which for simplicity, compactness, and brilliancy ofillumination, surpasses every other oil lantern in the LENSES. 19 market. Neither the Sciopticon, nor any of the stere-opticons, are difficult to manage. But little time willbe needed to learn all that is needful to know in orderto work them well, and they are not likely to becomedisarranged. The course of experiments to be given will be gen-erally adapted to both the porte lumiere, and the lan-tern, but the adjustments will be described for theformer. If, however, some special arrangement of thelantern will be needed for a given experiment, it willbe pointed out. A sufficient number and variety of experiments inphysics, chemistry, and natural history, will be de-scribed, to make any one who is practically interestedin the work so familiar with the apparatus and itsworking, that he will need no further instruction in thea
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Keywords: ., bookcentury1800, bookdecade1870, bookpublisherbosto, bookyear1877
