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 45
der of amal-gamated zinc, standing on short legs,and divided by a longitudinal openingon one side, in order to allow the acidto circulate freely. Inside of this is aporous cell of unglazed porcelain, con-taining the nitric acid and strip of plat-inum. The platinum is supported by a strip of… … BATTERY. 29 is completed; but a small portion of the nitric acidfilters through the porous cell, by which the zincwould be readily attacked. It is therefore advisableto remove it from the acid when the battery is outof action for any length of time. 45. Fig. 18 represents a series of twelve pairsof…
