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Improved Machinery for Planning and Molding Curved Forms

The Evils of Painting, and Their Remedy

The Primeval Flora--Lecture before the American Institute, by Professor Dawson

The Evolution of the North American Continent--Lecture by Professor Hall

Reported for the Scientific American

Glass--Its Composition

Lyceum of Natural History

“Are Painted Lightning Rods any Protection?”

By John H. Patterson

John Macadam--Inventor of Macadamized Roads

By James Parton

Influence of the Oxides of Chromium and Titanium on the Composition of Pig Iron

By Aug. A. Hayes and S. Dana Hayes

Opinions of the Press

Kasson's Concavo-Convex Auger and Bit

Aerial Inhabitants

Navigation of the Mississippi--Proposals for its Improvement

Inutility of Forts of Masonry

Honor of Workmen--The Value of a Good Name

Abuse of the Franking Privilege Again

Reminiscences of Travel in Spain

What is Fusel Oil?

The New French Gaslight

Editorial Summary


Official List of Patents

Recent American and Foreign Patents


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  • Business and Personal

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January 16, 1869