of a nicely balanced lever attached an ingenious seismograph invented by M. Ignazio Galli, of Ontario. Thence the route is across Lake Ontario itself to to the brass support which arches over the middle of the the Meteorological Observatory at Velletri, Italy. It con- base. As the earth tremor… … band having its end fastened to a small plate, which is pivoted GALLI'S SEISMOGBAFH. feet to 16 feet, so that vessels descending need not pass to a button that is arranged to slide on a thin rod or a wire through the Galop Canal at all. A contract has been issued fastened to the rear side of the…
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