Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 416
forated two openings, or windows, close to the periphery or edge, inthe line of the horizontal diameter, and each of these openings (on theupper edge of one and lower edge of the other) has a strip of paperattached to the glass. This strip being about 1| to 2 inches inwidth (the plate A in such… … * The front surface (of a plate of glass) rotated before a source of electricity, ischarged feebly positively, while the back surface will become feebly negative.— RiesK Pogrjendorff Annalen cxxxi, p. 215. 358 Chemistry, Physics, Technology, etc. On the same level as the armatures, and on the…
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