War Balloons

On the Action of Boston Water on Certain Sorts of Service Pipe

The Arch

A New Method of Stocking and Reloading Coal

Fuel Gas and Incandescent Gas Lighting

Economy of incandescent gas lighting

The “Hetherington” Saw

Largeron's Anti-Dip Arrangement

A Multiple Magnesium Light

American Mill Methods—A Popular Description of how Flour is Made at the Present Time

Electric Transmission of Energy

The Telephonic Bullet Probe

Electrical Welding

The Great Telescopes of the World; Their Construction, Powers and Limitations

The Chemistry of Substances Taking Part in Putrefaction and Antisepsis

An Improved Altazimuth Mounting

Reading of Dial Instruments

Alumina as a Natural Constituent of Wheat Flour

On a New Method of Examining Butter

The Cure of Deaf-Mutism

The Manufacture of Cocaine

A Floating Candle

Some Suggested Changes in the Patent Laws