Rush of pupils. We ought assuredly to pause in the case among the atoms when uncombined. The pitch of which we owe the discovery, selection, and arrangement of electric bell, 119. Induction coil, 121; uses of, 125. Injector, 39; Giffard's, _41_; principle of, 40; self-starting, 42. Interlocking of signals, 204, 222.