Prof. John Tyndall - p386

doi:10.1038/scientificamerican12161893-386

PDF (410 KB)

Screen Photography in Colors - p386

doi:10.1038/scientificamerican12161893-386a

PDF (410 KB)

The Pennsylvania Anthracite Coal Fields - pp386 - 387

doi:10.1038/scientificamerican12161893-386b

PDF (502 KB)

An Improved Adding Machine - p388

doi:10.1038/scientificamerican12161893-388

PDF (263 KB)

A New System of Lighting Street Gas Lamps without the Use of Wires - p388

doi:10.1038/scientificamerican12161893-388a

PDF (263 KB)

Automatic Distributor of Perfumes - p388

doi:10.1038/scientificamerican12161893-388b

PDF (263 KB)

A Brake for Portable Engines, Etc - p388

doi:10.1038/scientificamerican12161893-388c

PDF (263 KB)

The Bundy Automatic Time Recorder at the Exposition - p389

doi:10.1038/scientificamerican12161893-389

PDF (301 KB)

A New Storage Battery - pp389 - 390

doi:10.1038/scientificamerican12161893-389a

PDF (515 KB)

A Novelty for the Midwinter Fair - pp390 - 391

doi:10.1038/scientificamerican12161893-390

PDF (337 KB)

The Broadway Cable Railway - p392

doi:10.1038/scientificamerican12161893-392

PDF (774 KB)

United States Large Caliber Mortars - pp393 - 395

doi:10.1038/scientificamerican12161893-393

PDF (662 KB)

A Carbonic Acid Motor - p395

Gustave Michaud, Sc.D.

doi:10.1038/scientificamerican12161893-395

PDF (258 KB)

Experiment on the Tension of Liquid Films - p395

doi:10.1038/scientificamerican12161893-395a

PDF (258 KB)

To Inventors - p397

doi:10.1038/scientificamerican12161893-397b

PDF (754 KB)