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 36
next, andthat the terminal wires proceed, consequently, onefrom a platinum plate and the other from a zincplate, as in a single pair. 29. Cylindrical Sulphate of Copper Battery.— This battery, a vertical section of which is rep-^^^ ^^ resented in Fig. 11, consists of a doublecylinder of copper, C… … 20 DAVISS MANUAL. is a movable cylinder of zinc, marked 2 in thesectional view, which is let down into this solutionwhenever the battery is to be put in action. It is,of course, intermediate in size, as well as in position,to the two copper cylinders, and is made to restupon the exterior one by…
