Improvement in Road Steamers - p319

doi:10.1038/scientificamerican11191870-319

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Scientific use of the Imagination - pp320 - 321

John Tyndall, Ll.D., F.R.S.

doi:10.1038/scientificamerican11191870-320

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Professor Tyndall's Lecture on Electrical Phenomena - pp321 - 322

doi:10.1038/scientificamerican11191870-321

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The Stereoscope - pp322 - 324

doi:10.1038/scientificamerican11191870-322

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Progress of Invention Abroad - p325

doi:10.1038/scientificamerican11191870-325

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Scientific Intelligence - p325

doi:10.1038/scientificamerican11191870-325a

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Device for Spreading Circular Saw Teeth - p326

doi:10.1038/scientificamerican11191870-326

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Power's Endless Ladder Hod Elevator - p326

doi:10.1038/scientificamerican11191870-326a

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Bourne's Spherical Steam Engine Governor - p326

doi:10.1038/scientificamerican11191870-326b

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How Long Shall Nitro-Glycerin Continue Its Work of Destruction?—The Fairport Explosion - p327

doi:10.1038/scientificamerican11191870-327

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Roads and Road-Making - p327

doi:10.1038/scientificamerican11191870-327a

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The Motive Power of Expanding Gases - pp327 - 328

doi:10.1038/scientificamerican11191870-327b

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Time and Distance - p328

doi:10.1038/scientificamerican11191870-328

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Resignation of Commissioner Fisher - p328

doi:10.1038/scientificamerican11191870-328a

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Attempt to Abolish the Patent Office - p328

doi:10.1038/scientificamerican11191870-328b

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Letters from the South - pp328 - 329

doi:10.1038/scientificamerican11191870-328c

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Razing Band Saws - p329

doi:10.1038/scientificamerican11191870-329

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Queries - p329

doi:10.1038/scientificamerican11191870-329a

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Answers to Correspondents - pp329 - 330

doi:10.1038/scientificamerican11191870-329b

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Recent American and Foreign Patents - pp330 - 331

doi:10.1038/scientificamerican11191870-330a

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Official List of Patents - pp331 - 332

doi:10.1038/scientificamerican11191870-331

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