. A revised and enlarged edition of Clarks̕ New system of electrical medication. No. I.—Sponge Holder, with brass cylinder for convenience of localizingone pole while the other pole is in both hands for large No. 2.—Improved Sponge Holder. To fix th^ sponge on this holder, un-screw the handle B by turning the handle itself. Place the sponge on the out-side surface of the lower plate D, and bring the edges of the sponge over theedges of the plate, clasp it with the plate C, and hold altogether by screwingon the handle B.

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Keywords: ., bookcentury1800, bookdecade1880, booksubjectelectri, bookyear1882