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The Gileppe River Dam Near Verviers, Belgium

Lime Instead of Powder for Mining

Spherical Steam Engine

The Allis Twin Engines

Liquid Fuel as Used in Russia

The Panemone

Simple Process of Recovering Silver Residues

Solid and Liquid Illuminating Agents

By Leopold Field

Fixation of Indigo upon Cotton

By MM. Schlieper and Baum

Philipp Reis, Inventor of the Telephone

By Sylvanus P. Thompson

Ball's Electric Machine

Perspective, and its Application to Artistic Drawing

By J. Romilly Allen

Cottage Villa Residences

Phenetol and its Derivatives

By E. J. Hallock

Manufacture of Sodium and Other Alkaline Metals by the Electrolysis of their Salts Along with Heat

Reagents for Vegetable Alkaloids

By R. Palm

Round Shoulders, or Antero-Posterior Curvature of the Spine

By Chas F. Stillman

Cinnamon Culture in Ceylon


Masdevallia Carderi

White Lily of the Incas (Alstromeria pelegrina alba)

Ways of Lemmings

By G. A. Stockwell


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