. Electro-physiology . FIG. S6.—Registering tuning-fork, for interruption or closure of current. (Hering.)

---

Size: 2342px × 2134px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bo, bookcentury1800, bookdecade1890, bookpublisherlondonmacmillan