Channing, William F.(William Francis),1820-1901 · Boston : Thomas Hall · leaf 274
Fig. 28. Pig. 29. No. 28. Small Sulphate Copper Battery. Price, $2.00. No. 29. Showing a section of Fig. 28. C C copper,Z zinc, the solution as composed of sulphate of copper,about one ounce to a pint of water.
Electrotherapy · Medicine, Physical · Electricity
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