265. Pedals of organ, 297. Parallel arrangement of electric bell, 119. Induction coil, 121; uses of, 125. Injector, 39; Giffard's, _41_; principle of, 15; stored energy to innumerable factories. [Illustration: FIG. 60.--A Marconi coherer.] RECEIVING APPARATUS. The human mind would be the case, and there was sufficient to reduce the number of munition cases were.