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Gibraltar

Gibraltar and Neighborhood

Report by Consul Sprague

The Defense of Gibraltar: Experimental Naval and Military Operations

Clark's Gyroscopic Torpedoes

The First Steamboat on the Seine

The Franz Josef I., New War Ship

The Electric Motor Tests on the New York Elevated Railroad

Magnetism in its Relation to Induced Electromotive Force and Current

By Elihu Thomson

Electric Lighting at the Paris Exhibition—The Oerlikon Works

The Ader Flourish of Trumpets

Notes on Dyewood Extracts and Similar Preparations

By Louis Siebold

Platinotype Printing

Orthochromatic Photography

By Oscar O. Litzkow

On Allotropic Forms of Silver

By M. Carey Lea

On the Occurrence of Paraffine in Crude Petroleum

Turpentine and its Products

By Edward Davies

Succession of Forest Growths

Transmission of Pressure in Fluids

By Albert B. Porter

Pear Duchesse D'angouleme

The “Hatchery” of the Sun-Fish

Ancient Lake Dwellings

Water as a Therapeutical Agent

By F. C. Robinson

How to raise Turkeys

Counter-Irritation in Whooping Cough

By G. F. Inglott

On the Health Value to Man of the So-Called Divinely Beneficent Gift, Tobacco

By J. M. W. Kitchen

Acetic Acid as a Disinfectant

Development of the Embryo

Building Plans and Specifications

Iridescent Crystals

By Lord Rayleigh

Useful Engineering Books

Departments

  • Departments

    Patents- August 17, 1889

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Know Before You Vote

Know Before You Vote