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The Invention of the Magnetic Telegraph - p337
doi:10.1038/scientificamerican07031858-337
Clinger & Cremer's Stalk Cutter and Crusher - p337
doi:10.1038/scientificamerican07031858-337c
Artificial Method of Producing Sapphires - p337
doi:10.1038/scientificamerican07031858-337d
Preparing Hair for Stuffing Beds and Cushions - p340
doi:10.1038/scientificamerican07031858-340
The Susquehan na and our Health Officers - p341
doi:10.1038/scientificamerican07031858-341b
Mechanics Inventors, Manufacturers, and Farmers - p344
doi:10.1038/scientificamerican07031858-344f