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Detection ot Cotton in Unbleached Linen - p281
doi:10.1038/scientificamerican05211853-281a
New Mode of Gearing Reciprocating Motion - p282
doi:10.1038/scientificamerican05211853-282d
Effect of Alkalies on the Human System - p283
doi:10.1038/scientificamerican05211853-283a
Improvement in Hot-Air Furnaces and Ventilators - p284
doi:10.1038/scientificamerican05211853-284a
The London Illustrated News and the Scientific American - p285
doi:10.1038/scientificamerican05211853-285c
Scientific Apologists for the Caloric Engine - p286
doi:10.1038/scientificamerican05211853-286b
Interesting Discovery in Electro Gilding - p288
doi:10.1038/scientificamerican05211853-288
