Features
The Pennsylvania Anthracite Coal Fields
Prof. John Tyndall
A New System of Lighting Street Gas Lamps Without the Use of Wires
An Improved Adding Machine
A Brake for Portable Engines, Etc.
Automatic Distributor of Perfumes
A New Storage Battery
The Bundy Automatic Time Recorder at the Exposition
A Novelty for the Midwinter Fair
The Broadway Cable Railway
United States Large Caliber Mortars
Experiment on the Tension of Liquid Films
A Carbonic Acid Motor
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