. Electro-physiology . PIG. 75.—Effect of duration of current on contraction magnitude of adductor muscle of Anodonta (excitation with constant current); (a), duration of closure = J sec. ; (fr), = lsec. ; (<'), = 4 sees. ; (o), opening contraction. (Biedermann.) strength of current in proportion with the time during which cur- rent passes (Fig. To). This agrees with the fact that single induc- tion shocks only stimulate the most excitable preparations at a very high intensity, so far as may be concluded from the visible

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Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublisherlondonmacmillan