Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 196
lamp, prisms, counterpoise, and so forth. Theparticular method by which the electric light has been utilized in myown case, is, to the best of my knowledge, novel. I described it in theEnglish Mechanic of April 11, 1884 (page 124), and quote therefrom,Avith but verbal alterations. [It is especially… … applied thereto, we see an appearance like that represented in Fig. 2,where A is the plane mirror, B part of its support, and D an annularspace surrounding plane (in reality the opposite interior of main tube).On the far side of main tube a hole is pierced, so that its circular out-line shall be…
Science · Technology · Meteorology · Patents
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
