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Report of the New England Inventors and Mechanics Industrial Exhibition - pp161 - 162
doi:10.1038/scientificamerican02021856-161c
Photographic and Stereoscopic Angles—The True Theory - p163
doi:10.1038/scientificamerican02021856-163
The Woodworth Patent Extension—Appeal to Governors and State Legislatures - p165
doi:10.1038/scientificamerican02021856-165a
Remonstrances to the Woodworth Patent Extension - p165
doi:10.1038/scientificamerican02021856-165b
History of Gas Lighting—Who was Its Inventor - p165
doi:10.1038/scientificamerican02021856-165d
Important to Inventors and Model Makers - p165
doi:10.1038/scientificamerican02021856-165f
Safety of Railway Travelling in England, Car Axies, &C - p166
doi:10.1038/scientificamerican02021856-166
Spiking Logs—Floating some and Sinking Others - p166
doi:10.1038/scientificamerican02021856-166c
