The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)
Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 240
Fig. 191. … * The Universal Discharger, Fig. 1G5, Mechanical Electricity, may be con-veniently used for holding these wires. t By means of a platina wire passing through the powder of the priming-hole, experiment § 166 may be performed by the Galvanic Battery instead ofthe Leyden Jar. How is the powder ignited…
Physics
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