The practical telephone handbook and guide to the telephonic exchange (1906)
Poole, Joseph · New York, Macmillan Co. · leaf 58
cell; but this term is a misnomer, as no perfectly drycell would give cur-rent. It is so calledbecause it gives nooutward evidence ofcontaining a liquid. Fig. 19 gives aview of three E.C.C.dry cells in a box,and Fig. 20 a sec-tion of one of thesecells. This has beena very successfulform of dry… … Fig. 19 The carbon plate, c, isthe composition of 100carbon 37,magnesium oxide 7, water 10, and 12 parts of other non-importantmaterials. This paste occupies most of the cell, and isseparated by canvas, or other porous material, from a whitepaste, s, made up of calcium oxide, with organic matter20…
Telephone
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