The Steam Turbine: The Steam Engine of Maximum Simplicity and of Highest Thermal Efficiency

The Pollak-Virag Telegraph

The Water Supply of Lake Nicaragua

A Reply to Criticisms by the Hydrographer of the Nicaragua Canal Commission

Electric Earth Clock

Enameline Printing—The Metal

German Beet-Sugar Industry

The German Colony of new Guinea

The International Congresses of Meteorology and Aeronautics at Paris

In Justice to Vespucci

The Mechanism of Amphitheaters.—II

Cryptostemma Lusitanicum

Distribution of Seeds By Wind

Effect of Incandescent Gaslight on Plant Growth

New Method of Testing Glass Surfaces

Arsenical Sulphuric Acid

Trade Suggestions From United States Consuls

Patents

Trade Notes and Receipts