Experimental science. Elementary, practical and experimental physics (1890)
Hopkins, George M. (George Milton), 1842-1902 · New York, Munn & co. · leaf 592
Fig. 551. … Autographs of the Electric Spark. 570 EXPERIMENTAL SCIENCE. ful reproductions of the original work done by the elec-trical discharge are presented herewith. The figures num-bered 548 to 551 were produced b} the discharge from thenegative terminal of the coil, while the marks shown in Fig.552 were…
Physics · Lantern projection · Electric apparatus and appliances
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