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 46
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… … strip of platinum, except the terminal one, is soldereddirectly to the arm projecting from the adjoining zincplate. The terminal strip, with its screw-cup, issupported by the first zinc plate, but is insulated fromit, as in Fig. 17. Such a series is of very consider-able practical importance, as it…
