Cumming, Linnæus, b. 1843. [from old catalog] · New York, D. Van Nostrand · leaf 117
s tends to flow when a channel isopened from places of higher towards places of lower level, inwhich case level is analogous to potential, and water to elec-tricity, there being no flow of water between two reservoirsat the same level. G CHAPTER III ELECTRICAL INDUCTION 72. Electrification induced… … Fig. 63. Thus if A (Fig. 63) be a body electrified, say positively,and BG an insulated unelectrified body, we shall find on testingBG with a proof-plane that there is a charge of negativeelectricity at B and of positive electricity at G. If we passfrom B or (7, testing with the proof-plane at each…
Electricity
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