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The Aarsenic industry of Cornwall

The English Correspondent of The Scientific American

Wages and Retail Prices of Food in 1906

Occurrence of Diamonds in Arkansas

By George F kunz and Henry S Washington

Residual Products of Brewing

The utilization of a waste product

Device for Automatically Controlling the Heating of a House

A Description of the Sylphon Regitherm

The Density of Ether

The Design of induction Coils

Practical Hints for the amateur and the Manufacturer

By Williem O. Eddy and Melville Eastham

Interaction of Abstract Science and its Applications

By Silvanus P. Thompson


The Wonderful Properties of a Newly applied Metal

Cable-Assisted Trains upon a Scottish Railroad

A Curious Method of Securing Economy

On the Variability in the Products Resulting from Changes in Radium Emanation

The Lumière Single-Plate Photographic Color Process

The Development of Armored War Vessels.— VI

Armor planting the united states

By J. H. Morrison

The Cult of the Cactus

The Posibilities of a little understoo Plant

By S. Leonard Bastin

The use of Soil survey

Importance of Accurately Studying the Soil

By J. A. Bonsteel

Tertiary Mammals and the doctrine of Evolution

Changes In Paleontology Since Darwin's Day

Progress of the New incandescent Lamps

Trade notes and formulæ

Electrical Notes

Engineering Notes


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