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Scientific American, Vol. 83, No. 16 (October 1900) (1900)

leaf 7

An illustration from Scientific American, Vol. 83, No. 16 (October 1900), 1900, leaf 7
e of the road is disturbedto a uniform depth throughout the whole section,which desideratum it is impossible to obtain bymeans of the handpick. ^txtniiUt ^mmtm. panying map of New York city and vicinity, fromwhich our cosmopolitan rfeaders may readily deter-mine whether their nightly ride of one… … what was known as .a No. 2 warm blast hematite.The smelted pigs were remelted and cast into pigs,which were again melted in three aif furnaces. Theweight of the iron melted was 172,000 pounds, time ofmelting 7J^ hours, time of casting 23 minutes. After thegun was cast, water was run through the…

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