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 188
Fig. 150. … of the arms. Connect the ball of the insulated post with theLeyden Jar, and charge the same from the prime conductor.The ball of the balance will now be attracted by the positiveelectricity of that connected with the jar, and, becoming posi- What is the experiment with the Electric Swan ? Explain…
Physics
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