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Scientific American Magazine Vol 49 Issue 13

Scientific American Magazine

Volume 49, Issue 13

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Features

Excavating and Dredging Apparatus

“Labor and Education”

Aspects of the Planets for October

Automatic Safety Appliances

The Western Union Underground Systems

Improved Plow

Improved Sash Balance

Improved Safety Valve

New Spanish War Steamers

Improved Fire Escape

Improved Filter

Improvement in Dust-Pans

Sad-Iron Holder

Pyrethrum, or Chrysanthemum Corymbosum

Miscellaneous Inventions

Mechanical Inventions

Engineering Inventions

Agricultural Inventions

Departments

Correspondence

Recent Inventions

New Books and Publications

Business and Personal

Index of Inventions

Notes and Queries