Scientific American Magazine Vol 44 Issue 6

Scientific American Magazine

Volume 44, Issue 6

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Features

Street Illumination

Gas in Steel and Glass Making

Electric Signals for the New York Elevated Railways

Aunrecognized Qualities in Charcoal

Singular Discovery in Connection with Phosphorescence

Trees in Cities

Electro-Metallurgy

A Description of Caucasian Petroleum

Miscellaneous Inventions

Butter Cooler and Water Holder

Improved Lock for Museum Cases

Many-Color Printing Press

New Microphone

M. Boudet

Decisions Relating to Patents

The Obelisk in Central Park

Improved Bench Clamp

Improved Extension Table

The Sea Cat

Natural History Notes

Jersey Bull Diavolo

Communications Received

Departments

Recent Inventions

Correspondence

New Inventions

Notes and Queries

Business and Personal

New Books and Publications

Index of Inventions