taken from Za Nature, represents sections: First, the Welland Canal from Lake Erie to Lake paper is the fine needle of a nicely balanced lever attached an ingenious selsmograph invented by M. Ignazio Galli, of Ontario. Thence the route is across Lake Ontario itself to to the brass support which… … GALLI’S SEISMOGRAPH. 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 scarf. sists of six separate devices for observing and recording…
Internet Archive · Public domain (published before 1931). Free to use for anything.
