flint) is of strument anew. } first charged with negative electricity. The corresponding In the Carré machine, represented in Fig. 2, this difficulty good quality, the insulation of the bottles may be so perfect | spring, 7, is then charged with positive electricity, which it Fig. 2. | that the… … prepare it for use three or four days’ soaking in fresh water until the electric density at the extremity of the spring be- is necessary. comes null. If the two springs are at the same time sub- | ree Mr. Ricoarp Hanks, a coal miner, living near Galesburg, mitted to the influence of two conductors…
Internet Archive · Public domain (published before 1931). Free to use for anything.
