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Foot Bridge Across Broadway, Chilled Shot

Something About Clocks

New Publications

A New Method of Saponification

Trade Marks--Gillott's 303

The Cotton Manufacture--Ring Spinning and Dressing

Editorial Summary

The Markets


Keiler's Lamp Chimney Cleaner

A Method of Controlling the Products of the Bessemer Process

Prepared for the Scientific American by Dr. Adolph Schmidt

Pulley Suspension Hook

Science Familiarly Illustrated

Manufacture of Beet Sugar

By Joseph Hirsh

Recent American and Foreign Patents

Answers to Correspondents

Davis's Improved Propeller Screw

Wilson's Clasp Hold-Back Iron

Letter to Mechanics and Inventors

When and Where Does the Day Begin?

The South American Mediterranean

The Glacial Theory and the Tropical Glaciers

Patent Claims

The Right to Free Highways

Extension Notices

White's Cylinder Oil Cup


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March 02, 1867

20% Sitewide for President's Day