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Street Elevator at Stockholm


D'Arsonval's Multiple Gas Burners

Vogel's Valves for Pulsometers

Protection from Fires in Theaters

Submarine Explorations

A Good Intensifier for Gelatine Plates

Apparatus for the Manufacture of Carbonate of Strontium

Ramie—A Recent Industry

Mont Dore, West Kirby, Cheshire

The Crystallization of Phosphoric Acid

By P. L. Huskisson

Incubators for Infants

Atomation of Oxygen at Elevated Temperatures, and the Production of Hydrogen Peroxide and Ammonium Nitrite, and the Non–Isolation of Ozone in the Burning of Purified Hydrogen and Hydrocarbons in Purified Air

By Albert R. Leeds

Croton Oil

Recent Progress in Dynamo Electric Machines

By Silvanus P. Thompson

The Honey Ants of the Garden of the Gods

Composition of Manure

Culture of Raspberries

The Indians of New Mexico


  • Departments

    Patents - April 26, 1884

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