s the bridge across was, that he found when a compact mass of iron filings were burn, which it apparently does, from what Mr. Robinson says the Genesee and the canal at Portage, a view of which is giv- formed between the two poles of a magnet and then broken producing a great heat and intense… … wooden structure, erected for a similar purpose, im the world. of a bar of tough iron. These and other facts led him to try ever the mode of operation may be, the results being as stated the experiment of applying a magnet first to castings while It is erected on thirteen stone piers set in the bed…
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