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Saving Daylight

Economic Reasons That Make a Change in Our Hours of Work Desirable

By George Frederick Kuntz

Sawing Cast Iron


The Science of the Structure of the Atmosphere

By Alexander McAdie

Galalith for Insulating Wounded Nerves

Migratory Consumptives

Medieval Universities

The Revival of Learning in Europe, and Curious Regulations of Discipline

By Clayton Sedgwick Cooper

Brier Roots for Pipe Making

Misuse of Drainage Systems as Sanitary Sewers

By Lafayette Higgins

The “Duilio”

How Italy Promotes her South American Trade

Concrete Floors in the Home

The Turquois

Antimony and the War

Principle Sources of the Metal, and Notes on its Reduction

Stone for Road Material

American Flags

Interesting Relics in the National Museum

The Principles of Crop Production

A Review of Early Theories, and Results of Extended Investigations

By Edward John Russell


And Color-Vision Theories, Including the Theory of Vision

By F. W. Edridge-Green


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