55
Exact copy of the drawing of Schilling's Telegraph referred to by Dr. Hamel, at Page 54, as correct; (the original apparatus having been "lately found" by him at Heidelberg, Page 43.) Taken from "Drawing I., Part A. of "The Electric Telegraph: Was it invented by Professor Wheatstone," in 2 Vols., W. H. Smith & Son, Strand, London.
