Scientific American Magazine Vol 69 Issue 22

Scientific American Magazine

Volume 69, Issue 22

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Features

Electric Launches at the Columbian Exposition

More Engineers Needed for the Navy

The Columbia, the New Commerce Destroyer

Improved Cross-Cutting Saw

A Readily Adjustable Camera Stand

An Improved Rotary Engine

An Extensible Electric Light Support

A Quick and Sure Chicken Beheader

New Fire Alarms

A Coin Holding and Delivering Device

A Metallic Bookcase

Improvements in Shapers

Four Hundred Horse Power Mill Engine

Securing Propeller Blades to the Hub

A Simple Gas Meter Connection

The Triple-Screw War Ship Columbia

To Inventors

Departments

Notes and Queries

Business and Personal

Recently Patented Inventions

Index of Inventions

Patents