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A New Pneumatic Gun

Raising of the British Man-of-War Sultan

Italian War Ships

The Gun

Baldwin Locomotive No. 10,000

Elevating Platform Ferry Steamer

Bleaching during Electrolysis

By H. N. Warren

The Teredo in South Africa

Smokeless Powder

Machine for Breaking Flax

A New Electro Dynamics

By John Lowe

Zigang's Polyphone

Review of Theories of Electrical Action

By H. S. Carhart

Electric Motors

The Striking of the Eiffel Tower by Lightning

By M. Mascart

A Glance at the French Exhibition

International Convention of Firemen at Paris

Sarah Heath, Centenarian

The Journals of the World

The Barcelona Captive Balloon

Our Sensations of Motion

The Concentration of Ammoniacal Liquor

Rapid Filtration

By Reginald A. Fessenden

Pure Chlorophyl

Building Plans and Specifications

Useful Engineering Books


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October 12, 1889