Electrification of the North Eastern Railroad of Great Britain

By the English Correspondent of the Scientific American

Pumping Tar and other Heavy Liquids

Gas Turbines

The Pino Hydroscope

Contemporary Electrical Science

The Constitution of Portland Cement from a Physico-Chemical Standpoint

Color Photography by New Method

New Apparatus for Charging and Discharging Gas Retorts

New Method of Manufacturing Oxygenated Water

A New Theory of the Origin of Species

Current Wheels: Their use in Lifting Water for Irrigation

Man-Tracking

Electrical Notes

Engineering Notes

Trade Notes and Recipes