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Scientific American, Vol. 4, No. 33 (1849) (1849)

leaf 4

An illustration from Scientific American, Vol. 4, No. 33 (1849), 1849, leaf 4
l do if applied during the whole. led every few days with some new and won- fore 110 feet less in span than the new bridge tion is that of Mr. John Ryan, M. D. of the Improved Method of Preserving Organic derful discovery, that the inventions patented ever the Danube. The suspension bridge at Royal… … obtrusive, meek invention patented this week Treatise on Bridge Architecture, published This invention relates to the preservation letter says, ‘‘ since I wrote youl have seen without a pamphlet written by its author to by Alexander Niven, No. 120 Duane st. this of substances by supplying certain…

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