Dodge, Mary Mapes, 1830-1905 · New York : Scribner · leaf 563
hown in Fig. 7 consists of a deepglass jar, three strips of thin copper rivetedtogether, and a zinc spider that is caught on theupper edge of the glass jar. These parts willhave to be purchased at a supply-house, as wellas a pound or two of sulphate of copper (bluestone). To set up the cell, place… … FIG. 6. FIG. 7. DIFFERENT FORMS OF CELLS. dissolve two ounces of sulphate of zinc in enoughwater to complete the filling of the jar to withinan inch of the top; then hang the zinc spideron the edge of the jar so that it is immersed inthe liquid and about three inches above the top ■905-1 THE…
Children's literature
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