of Sciences states that they had been engine under the name of a steam road roller. The ‘“‘The teeth are all formed in shape like the letter making experiments on the coloring matter of the machine, which has been patented by Messrs. Clark Y, the lower part of each tooth in its row commenc-… … be superior toanything of the kind produced in this country. The publishers of the SCIENTIFIC AMERICAN promise to present, as during preceding years, all the latest improvements in Steam En< gineering, War Vessels, Ordnance—military and naval—Fire-arms, through the whole series in each radiating…
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