Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . he saline or acidsolution surrounding it. Next comesthe porous cell; and without this/ again the space containing the sul-f phate of copper solution. It is ne-cessary, after the porous cell hasbeen in use, to allow it to soak inseveral waters before drying it to putaway. Otherwise the salts whichare contained in it will crystallize inthe interstices and disintegrate its substance. Flo-. 15. ^^- Another form of protected sul- phate of copper battery is
Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity . he saline or acidsolution surrounding it. Next comesthe porous cell; and without this/ again the space containing the sul-f phate of copper solution. It is ne-cessary, after the porous cell hasbeen in use, to allow it to soak inseveral waters before drying it to putaway. Otherwise the salts whichare contained in it will crystallize inthe interstices and disintegrate its substance. Flo-. 15. ^^- Another form of protected sul- phate of copper battery is representedin Fig. 15, the chief difference con-sisting in the porous cell, which is ofthick leather. Except, however, wherebatteries of a particular shape or sizeare required, for which earthen warecells cannot readily be obtained, thosepreviously described are preferred. 38. Fig. 16 represents a protecteabattery, in which the leather forms adouble cell, enclosing the zinc, so tha*a double cylinder of copper can beused, as in the cylinder battery (), and both surfaces of the zinc arethus opposed to corresponding surfaces of copper.
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Keywords: ., bookcentury1800, bookdecade1850, booksubjectmagnetism, bookyear18
