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Departments

Correspondence

Correspondence pp51 - 52

doi:10.1038/scientificamerican07211866-51


Inventions

New Inventions p53

doi:10.1038/scientificamerican07211866-53


Notes and Queries

Notes and Queries p53

doi:10.1038/scientificamerican07211866-53a


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Articles

Improved Washing Machine, Cheap Ice Pitcher, and more p47

doi:10.1038/scientificamerican07211866-47


Great Trial of Agricultural Implements—Mowers, Reapers, Etc—At Auburn, N. Y. pp48 - 49

doi:10.1038/scientificamerican07211866-48


Testing a Turret p49

doi:10.1038/scientificamerican07211866-49


Self-Registering Barometer p50

doi:10.1038/scientificamerican07211866-50


Chappell's Adjustable Toilet Glass p50

doi:10.1038/scientificamerican07211866-50a


The Proposed Metric System p50

doi:10.1038/scientificamerican07211866-50b


Cause of the Failures of the Atlantic Cable p50

doi:10.1038/scientificamerican07211866-50c


The Rightful Inventor the First to Make the Invention Useful p52

doi:10.1038/scientificamerican07211866-52


Variation in form not Patentable pp52 - 53

doi:10.1038/scientificamerican07211866-52a


The Roberts Petroleum Torpedo p54

doi:10.1038/scientificamerican07211866-54


Biggs and Flinn's Hydrant p54

doi:10.1038/scientificamerican07211866-54a


Are Iron Safes Safe? p55

doi:10.1038/scientificamerican07211866-55


Experiments with Nitro-Glycerin p55

doi:10.1038/scientificamerican07211866-55a


Patent Claims pp56 - 62

doi:10.1038/scientificamerican07211866-56


Pitman's Animal Trap p62

doi:10.1038/scientificamerican07211866-62


Knoepke's Wash Basin p62

doi:10.1038/scientificamerican07211866-62a


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