Features
Archæological Discovery in Rome
Experiments with the Telephone
Clamond's Improved Electric Thermo-Pile
Notes on the Telephone
Its History and the Theory of its Construction and Operation
A Visit to the Inventor of the Phonograph
Cincinnati Inclined Planes.—The Highland House
Improved Fire-Engine Pump
The Working of Coal
Compressed Air Receptacles
Mining in Boulder County, Colorado
Iron and Coal in British Columbia
Recent Torpedo Experiments in England
Damascened Ornaments from a Shield, Hispano-Moresco Work. —Suggestions for Decorative Art
Prize for Blowpipe Apparatus
The Geological Antiquity of Flowers and Insects
Olive Culture
What is a Diatom?
Phosphorescence and Fluorescence
Platinum Metals
Chemical Reactions of the Electric Effluve and upon Persulphuric Acid
Œnoline, and its Preparation
Ginger
Refraction of Gases and Vapors
Repulsion Resulting from Radiation
[Presented to the French Academy by M. Th. du Moncel]
