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Goubet's Submarine Torpedo Boat

Scientific Method in Mechanical Engineering

By Coleman Sellers

Davies' System of Railway Rail-Fastening

H.M.S. Irrawaddy

Destruction of Ordnance by Gun-Cotton

The Vacuum Automatic Brake

A New Condensation Hygrometer

The Wackernie Filter

Berthon and Debenoit's Water Meter

Forge and Workshop for Amateurs

Disruptive Discharges through Solids and Liquids

By Tarquem Messrs and Damien

Ochorowicz's Thermomicrophone

Mineralogical Microscope

Intermittent Siphons

Of the Theory of the Electro-Magnetic Telephone Transmitter

By M. E. Mercadier

The Telephone Question

The Telephone Litigation.—The Dolbear Case

The Glynde Telpher Line

The American Public Health Association

Unilateral Hallucinations

By William A. Hammond

Uintahite Asphaltum

By W. P. Blake

A Common Edible Fungus

An Iron Pillar in the Punjab (Hindostan), Near Delhi

Can a Celestial Body Fall to the Center of its Attraction ?


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January 09, 1886

20% Sitewide for President's Day