break the circuit;the bubbles are almost instantaneously dissipated and as quicklyrenewed, the rate being in part determined by the size of the hole. In its usual form the apparatus consists of a jar containing aninner cylindrical vessel of glass, suspended so that it does not restupon the bottom.… … Fig. 27.—Caldwells Electrolytic Interrupter (Sanitas Co.). accordingly provided with an overflow channel, through which theliquid returns into the outer vessel. As both poles are of lead andof large area, there is no special need to make the connections inone particular way as required for Wehnelts…
X-rays · Radiography
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![An illustration from The Telegrapher [microform] (1864)](https://img.insideoutlibrary.com/img/200/ia-telegrapher04nati-268-117.webp)
