Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 682
sal-ammoniac in a pint of water, andthe jar should be filled three fourths full. Inthis solution the carbons and zinc may be sus-pended, as shown in Fig. 5 on the next page.Plates of zinc and carbon may be clamped eitherside of a square stick and suspended in the sal-Vol. XXXIL —140. 1 ammoniac… … CARBON ^FIG. I.
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