Improved Horse-Power Fire Engine, Novel Trout Fishing - p401

doi:10.1038/scientificamerican12251869-401

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Seymour's Patent Pocket Boot-Jack - pp401 - 402

doi:10.1038/scientificamerican12251869-401a

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Railway Bridge across the Seine - pp402 - 403

doi:10.1038/scientificamerican12251869-402

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The Spectroscope and Aurora Borealis - p403

Daniel Knode Winder

doi:10.1038/scientificamerican12251869-403a

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American Inventions in Europe - p404

doi:10.1038/scientificamerican12251869-404

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Official List of Patents - pp404 - 405

doi:10.1038/scientificamerican12251869-404a

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New Publications - pp405 - 406

doi:10.1038/scientificamerican12251869-405

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Reduce the Cost of Patents - p406

doi:10.1038/scientificamerican12251869-406

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To our Readers - p407

doi:10.1038/scientificamerican12251869-407

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Announcements for the New Volume - p407

doi:10.1038/scientificamerican12251869-407a

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Steam Plowing in America - p407

doi:10.1038/scientificamerican12251869-407b

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The Uses of Snow - p407

doi:10.1038/scientificamerican12251869-407c

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What Remains for Inventors - pp407 - 408

doi:10.1038/scientificamerican12251869-407d

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The Constructive Faculty of the Mind - p408

doi:10.1038/scientificamerican12251869-408

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Men of Progress—Great Inventors - pp408 - 409

doi:10.1038/scientificamerican12251869-408a

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Micrographs - pp409 - 410

doi:10.1038/scientificamerican12251869-409

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Answers to Correspondents - p410

doi:10.1038/scientificamerican12251869-410

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Recent American and Foreign patents - p412

doi:10.1038/scientificamerican12251869-412

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Applications for Extension of Patents - p412

doi:10.1038/scientificamerican12251869-412a

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