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Features

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

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

By Aug. A. Hayes and S. Dana Hayes

John Macadam--Inventor of Macadamized Roads

By James Parton

“Are Painted Lightning Rods any Protection?”

By John H. Patterson

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

Abuse of the Franking Privilege Again

Honor of Workmen--The Value of a Good Name

The New French Gaslight

What is Fusel Oil?

Reminiscences of Travel in Spain

Obituary

Editorial Summary

Official List of Patents

Recent American and Foreign Patents

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Know Before You Vote