Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 646
slide is placed in the lantern. Now,by gradually pressing down the lever, the glasses are sep-arated by the entrance of the knife between their edges.The arborescent forms grow downward in the slide, andthe aniHne color fills them, while upon the screen hugeferns and cacti grow up with great… … Lantern Slide for projecting Arborescent Forms. Without the application of color, the balsam yieldsimages which closely resemble richly embossed white satin,the form of the figures being substantially like those shownin the engravings. Any viscid substance such as vaseline orlard will exhibit this…
Physics · Lantern projection · Electric apparatus and appliances
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