Channing, William F.(William Francis),1820-1901 · Boston : Thomas Hall · leaf 271
.Consisting of amalgamated zinc and platinum, excited withsulphuric acid. This is applied directly to the patient bymeans of directors. Price, $24.00. No. 23. Halls Improved Constant Battery, composedof copper and zinc, excited by sulphate of copper. Thezinc is placed in the centre of a porous cup,… … Fig. 23. The advantage of this battery as a medical agent is very-great, as it will remain in constant action from nine monthsto a year without replacing, except with water, to replacethat which has evaporated. Price, per cup, $1.25.
Electrotherapy · Medicine, Physical · Electricity
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