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The Civil War in Cuba

Beneath the Lava

Argon and Helium

The Present Standing of the Florida Manatee Trichechus Latirostris (Harlan),in the Indian River Waters

By Outram Bangs

The Scabious

By C. Wolley Dod

Arctic Explorations in 1894–1895

By Charles Rabot

Miscellaneous Notes

Electrical Notes

Engineering Notes

The Olympion at Vienna

The Fastest of Fast Runs

Columnless Gas Holders

The Manufacture of Metallic Tubes by the Boulet Process

Notes on Cement Testing

By H. M. Norris

An Early Copying Lathe with Slide Rest

Power Consumption on Electric Railways

By A. K. Baylor

The Arc Light

Lecture III.—Continued Development of Siemens Lamp

By P. Thompson

Aylsworth's Niobium Incandescent Lamp


The Pillet Thermophore for Heating Rooms


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