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New System for Locating Bullets

Testing a Boiler to Destruction

Pineapple Fiber

Repeating Bells in Clocks

First Peanut Oil Factory in the United States

Philadelphia Textile School

The Comparative Advantages and Disadvantages of Steam, Compressed Air and Electricity for Power Purposes in Coal Working, with Special Reference to Coal Cutting and Haulage

(The Iron and Coal Trades Review Prize Essay.)

By G. E. J. McMurtrie

Enlargement of the Port of Marseilles

Electrical Notes

Miscellaneous Notes

Selected Formulæ

The Musee Social and its Work in Switzerland

Scenes around Pnom-Penh, the Capital of Cambodia

Things American

By Marcus Benjamin

Alfred Kocher and his Pace Makers

The Tomato Grafted upon the Potato

Marine Photography

The Weeping Spruce

Patents!

Increase of Rain in Modern Times

A New Steam Propelled Aeroplane

Last Issue of the Year—Renewal Subscriptions now Due

The Scientific American Supplement. Index for Vol. 44

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    December 25, 1897

    Confronting Common Wisdom