Scientific American Magazine

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

Glass--Its Composition

Lyceum of Natural History

John Macadam--Inventor of Macadamized Roads

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

“Are Painted Lightning Rods any Protection?”

Opinions of the Press

Kasson's Concavo-Convex Auger and Bit

Aerial Inhabitants

Honor of Workmen--The Value of a Good Name

Abuse of the Franking Privilege Again

Inutility of Forts of Masonry

Navigation of the Mississippi--Proposals for its Improvement

What is Fusel Oil?

The New French Gaslight

Reminiscences of Travel in Spain

Obituary

Editorial Summary

Recent American and Foreign Patents

Official List of Patents

Correspondence

Business and Personal