The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 245
icli, with Groves cells, luiving platinum plates three incheslong and two inches wide, is about one-fourth of an inch), and of a lengthproportionate to the inensity (which, of course, varies witti the number ofeels); care being taken to cut the strip of an equal width throu;;lioul. andwith a clean… … The strip of plalinnm is to be suspended between two forceps in the ap-paratus represeiiled in vertical section at fig. 1, a is a square brass barlixed on llie wooden sland b, and having a bindingsciew c, at it lowerend ; upon this bar two sockets d e, slide, carrying ihearms/g-, which…
Architecture · Civil engineering · Science
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