Davis's manual of magnetism : including galvanism, magnetism, electro-magnetism, electro-dynamics, magneto-electricity, and thermo-electricity (1854)
Davis, Daniel · Boston : Palmer and Hall · leaf 73
of themercurial, or odds and ends ^ form, a new and im- Fig. 32, proved variety, con-nected with a depos-iting apparatus. Alittle mercury is plac-ed in the bottom ofthe glass vessel form-ing the battery. Aplatinum plate is seensuspended in the cen-tre, beneath one ofthe screw-cups. Oneor more zinc… … COPPER DEPOSITED. 67 common with the zinc, with the plate on the top andthe other screw-cup. This battery will operate ifsimple scraps of zinc are placed in the mercury. Themould in the depositing cell will be seen to be con-nected with the zinc or negative pole of the battery. 90. During the…
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