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 229
ution of sulphate of copper (blue vitriol) in water.* Thisis poured into the space between the copper cylinders, and actson both surfaces of the zinc, fevolving a current of electricity,which passes through the liquid tothe copper, and so out through thepositive wire, as already explained.This… … * About two ounces of this salt to the pint is a convenient proportion ; ascold water dissolves this slowly, the process may be hastened, when necessary,l.y warming the liquid. Sulphate of copper is composed of sulphuric acidcombined with oxide of copper. t The action of this battery is as follows…
Physics
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