at Nashua, N. H., sends us the left switch. Where only one turntable is used under each subjoined diagram of the mechanism of a new self-moving switching rail, it is placed where the rails in a right and left vessel, now building on the stocks at that place, and which switch intersect, which is… … quart cup of -acid and zinc; and ter. An arm from each turn- here is Mr. Hamilton,in Nashua, table, on each side of the switch- N. H., who expects to accomplish the same thiug by simple ing track, projects outside of it so as to gear it to the disk, the same motion tothe others. These rods, by…
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