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 176
use every part of an electric apparatus should hekept free from dust; and never should this be placed in adamp room or exposed to the vapor from unstopped bottles ofacids and other liquids. 140. The Leyden Jar^ Fig. 132. This is used for collectingand holding a quantity of the electric fluid. To… … Fig. 134. Fig. 133.
Physics
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