Scientific American Magazine Vol 32 Issue 23

Scientific American Magazine

Volume 32, Issue 23

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Features

A New System of Gas Lighting

The Organic Origin of the Earth's Crust

Progress of Rapid Transit in New York City

Great Guns

The Distribution of Wealth

Scientific and Practical Information - June 5, 1875

The Durability of Glass

The Bessemer Channel Steamer

Astronomical Notes - June 5, 1875

Practical Mechanism - June 5, 1875

Joshua Rose

Improved Belt-Geared Cotton Press

Improved Bucket Ear

Improved Hydrant

New Sharpening Instrument

The Fatal Balloon Ascension

Hood's Adjustable Brush Handle

Hand Support for Sheep Shears

Car Wheels

Eldridge's Self-Acting Key Fastener

Recent American and Foreign Patents - June 5, 1875

Communications Received - June 5, 1875

Departments

Notes and Queries - June 5, 1875

Business and Personal - June 5, 1875

Index of Inventions - June 5, 1875