SA Supplements

Dressing and Dyeing of Aquatic Furs

Natural Products and Scientific Industry

Petroleum as a Substitute for Turpentine in Paints

The Evolution of Escapements

The Magnitude of the Coal Industry

Rainfall of Great Britain

The Sleeping Sickness

A British Seed-Testing Station

Port Tonnage of the World

Testing the Soundness of Cement

Some New Automobile Accumulators

Contemporary Electrical Science

The Walls of Ancient Troy

Electrical Power in West Africa

A Novel Method of Transporting Photographic Negatives

Colliery Explosion Rescue Work—Some Interesting Experiments

On a Principal Cause of the Saltness of the Dead Sea

Engineering Notes

Electrical Notes

Some Speculations on the Nature of Comets

Trade Suggestions from United States Consuls

Trade Notes and Recipes

Patents!

Correspondence - February 27, 1904