The Marvelous Phonopore

There seems to bc 00 end to tlio inarvels of eléctrica] scienee. We have long known that, Inexplicable as il seemed, niessages could bc sent throijgb a wire in opposite dtrections :it tlio name moment. Bat now we bave Mr. Langdon Davis utilizing iortelegrapblc purposes a form of electric foroo whicli can be separated altogether froni the ordinary electric. ourrent, and wlnili can pass freely throngh insalaton inipassable by cúrrente. The new instrument, termed a phonopore, can bu att.uhcd to any ordinary telegrnph line, as was done a day or two back in the MM of a line trom London Bridge to Folkestonc. The resultwas that it wal pocfible to send a phonoporio im'.":igi over the heads, as itwerc, f the usual operators, who oonld continue all tho timo to work the line froiu 'Ulier and, or at any intermedíate polnt, and In botli direotiona. Bloreover, wrhen tho Uno at either end wu diaoonnocted, so that there was n elosod oireuit, and telegraphio meaaagaa wer Üwlori t-ntirely impossiblc, the plionoporu worked as successfully as ever. - v'Jame1 Oazetle. - Á little boy's composition on cata winds up with rtiis refei'cnce to tlioit advantage over dogs: "Cats can elimo U-ees. Dogs kan't. That is lueky l"f cats. When a dog gets afterthem they can clime a tree, wliere tliey can sass back without gittiu hert."