Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 636
thus prevent injury to theprism or object. The table, /, which supports the tank, //, is made adjust-able as to height to accommodate different objects or piecesof apparatus. In front of the microscope attachment issupported a centrally apertured disk, which prevents straylight from reaching the… … ^^/l// Application of the Ninety Degree Prism. tube, a. By means of this pinion the objectives, togetherwith tlie sleeve,/, are moved out or in for focusing. In Fig. 585 is represented a polariscope for large objects,which is constructed according to the plan of Delezenne,but modified by the writer…
Physics · Lantern projection · Electric apparatus and appliances
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