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Features

Drawbridge over the Harlem River

Early Experiments in Steam Navigation

Topolobampo

Light Draught River Steamer

Traction Increasers

The Pneumatic Dynamite Torpedo Gun

Military Aeronautics

Gold Mining Machinery

Gun Steel

The Lewis-Bartlett Process of Lead Smelting

By William Ramsay

Balloon Varnishes

Parisian Carpet Loom

Climate in its Relation to Health

By G. V. Poore

The Scallop and its Fishery

By Ernest Ingersoll

Theatrical Firearms

Detection of Chloroform

By Charles Ludeking

A New Storage Battery

Building Plans and Specifications

Giuseppe Verdi

Departments

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May 14, 1887

Think Outside the Gift Box