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Engineering Honor

By Schuyler Skaats Wheeler

The Chemistry of Artists Colors in Relation to their Composition and Permanency.—IL

By John M. Thomson

Internal-Combustion Motors

By Dugald Clerk

Breakfast Cereals Prepared at Home

Cementol, a New Paint for Cement

The Importation of Precious Stones in 1905

Contemporary Electrical Science

The Wonders of a Bird's Bill

By B. S. Bowdish

Insecticides: Their Preparation and use

Detachable Rims for the Grand Prix

A Valveless Air Pump

By our Berlin Correspondent

Atmospheric Electricity and Trees

Electric Signaling

Rheostat and Resistance Column

Compound Alternating-Current Motors

Electrical Notes

Science Notes

Engineering Notes

Trade Notes and Formulæ

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