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Scientific American Magazine Vol 28 Issue 13

Scientific American Magazine

Volume 28, Issue 13

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Features

Improved Stone Quarrying Machine

Explosions Due to Low Water

Pseudo Science

Proposed New Patent Law in England

Injustice to Workmen

Kircher's Remarkable Observations Concerning the Sun

The Siphon Recording Telegraph Instrument

Lens Fires

Curious Effect of Light on Selenium

The Detroit River Tunnels

The Vienna Exhibition

Scientific and Practical Information

The Strength of Timber

John Anderson

New Valve Gearing for Steam Engines

Gin Saw Filing Machine

The Hixson Beehive

The Coffee Gardens of Arabia

The Bridal Veil, Havana Glen N. Y.

The Ralston Inclined Railway

Decisions of the Courts

Recent American and Foreign Patents

Answers to Correspondents

Communications Received

Departments

Correspondence - March 29, 1873

Notes and Queries - March 29, 1873

Business and Personal - March 29, 1873

Index of Inventions - March 29, 1873