. Electro-physiology . FIG. 71.—Apparatus for investigating the polar effects of the electrical current in muscle (double myograph). A non-polarisable movable electrode. (Hering.) these electrodes serve for a variety of purposes (1). " A 5'5 cm. glass tube (Fig. 71) is provided at the upper end with a split brass holder, carrying two diametrically opposite points, which fit into the holes of a pivot, so that the vertically dependent tube may easily turn on the points, and oscillate from them. The pivot is fixed to a brass ring (m), which can be moved along a horizontal rod (q) of bone or
. Electro-physiology . FIG. 71.—Apparatus for investigating the polar effects of the electrical current in muscle (double myograph). A non-polarisable movable electrode. (Hering.) these electrodes serve for a variety of purposes (1). " A 5'5 cm. glass tube (Fig. 71) is provided at the upper end with a split brass holder, carrying two diametrically opposite points, which fit into the holes of a pivot, so that the vertically dependent tube may easily turn on the points, and oscillate from them. The pivot is fixed to a brass ring (m), which can be moved along a horizontal rod (q) of bone or ebonite. A short ebonite cylinder (Ji) is pushed over the lower end of the glass tube, the opening of which is the continuation of the bore of the tube, and is transversely pierced in such a way that a slender bone like the tibia or os ileum of the frog can be passed through the hole, and fixed by a screw. A small amalgamated zinc rod is dropped into the tube from above,
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Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublisherlondonmacmillan
