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New Discovery for Soldering lron or Steel - p332
doi:10.1038/scientificamerican07071849-332a
To Prepare Cotton Cloth to Write on as a Substitute for Paper - p332
doi:10.1038/scientificamerican07071849-332d
Powder to make Iron Malleable, and to Clean it - p332
doi:10.1038/scientificamerican07071849-332g
American Navigation of the Orinoco - pp333 - 334
doi:10.1038/scientificamerican07071849-333e
Ingenious Lead for Sounding the Depth of Rivers - p336
doi:10.1038/scientificamerican07071849-336e
The Water Cure Journal and Herald of Reforms - p336
doi:10.1038/scientificamerican07071849-336f
