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Information to Persons having Business to Transact at the Patent Office - p27
doi:10.1038/scientificamerican10171846-27b
Machine for Turning the Heads of Wood Screws - p28
doi:10.1038/scientificamerican10171846-28h
Machine for Fencing and Ditching at One Operation - p28
doi:10.1038/scientificamerican10171846-28i
Relative Expense of Steam at Different Temperatures - p29
doi:10.1038/scientificamerican10171846-29a
Observations on the more Recent Researches Concerning the Operations of the Blast Furnace in the Manufacture of Iron - p30
J. L. Smith
doi:10.1038/scientificamerican10171846-30
