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Features

The Sponge Fishery of Florida

By John N. Cobb

Production of Glass Sand in 1902

The Centenary of Kant

On Purses; A Purse; And a Priory

Some New Photographic Chemicals

By H. Schweitzer

M. Blondlot's N-Ray Experiments

Calcium Steel, the New Rival of Ceramic Products

The Kouleli-Bourgas Disaster

Watch Dials

Contemporary Electrical Science

The Distillation of Pine Products

By Thomas W. Pritchard

How to Build an Electric Oven

By H. Schmidt

Gasoline Inspection Cars for Railways

By the London Correspondent of the Scientific American

Combined Condenser and Oil Eliminator for Steam Automobiles

How much of the Heat goes up the Chimney?

Electrical Notes

Engineering Notes

Trade Suggestions from United States Consuls

Trade Notes and Recipes

Patents!

Departments

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    March 19, 1904

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