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Adjustable Indicator for Rounding Saws

Improvement in Malt and Grain Kilns, Bromide of Potassium

The Watch--Its History and Manufacture

By H. F. Piaget

On Musical and Sensitive Flames

The Relation Between the Specific Gravity and Pressure of Gas

Manufacturing, Mining, and Railroad Items

Recent American and Foreign Patents

Extension Notices

Answers to Correspondents

Lectures on the Animal Kingdom

Pliable Glass

“The Wheel”

The Polytechnic Association--Its Usefulness and Abuse

Technical Education

Oxygen Gas from Manganese and Soda

Machine Shop Surgery

Importance of Balancing the Parts of Machinery

Editorial Summary

Patents and Claims

New Publications


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  • Business and Personal

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June 06, 1868

20% Sitewide for President's Day