Channing, William F.(William Francis),1820-1901 · Boston : Thomas Hall · leaf 264
Pig. 12. cup marked P. Attach the wire connected with the cupmarked N to the forceps; this can be done by drilling ahole in the handle of the forceps, and inserting the end ofthe wire so as to make good connection. The current isgraduated by removing the regulator from the centre of thehelix. Care… … Pig. 13 8 halls catalogue No. 13, Represents the best battery for this purpose,as it is a constant battery, always ready for use, and re-quires little care in its management, the zinc plates notrequiring any cleaning. It consists of amalgamated zincand platinum, with sulphuric acid and water; for a…
Electrotherapy · Medicine, Physical · Electricity
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