Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 635
of good quality.For the support of tanks and other vessels for projectionthe table, i, shown in Fig. 583, is used in place of the slideholder. The attachments shown in Fig. 583 are employed for theprojection of microscopic objects. The engraving shows thepolariscope in place; but this may be… … %^\<^. Lantern Polariscope. ently of the polarizer, and the latter may be revolved inde-pendently of the stage. The objectives are supported b)^ amovable plate, which swings so as to bring either of theobjectives into the position of use. A small conically pointedspring bolt locks this plate in…
Physics · Lantern projection · Electric apparatus and appliances
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