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Modern Petroleum Lighting

Rotating Liquids used as Mirrors

By Wood

A Perpetual Clock

The Ingenuity of James Cox

By Charles E. Benham

The Problem of Telephotography

A New System of Electrical Transmission of Pictures

By Robert Schoenhoefer

Recent Electrical Progress

The Artificial Lighting Field

By Albert F. Ganz

Motor Car Wheels

Their Mechanical Problems

Glass-Lined Cement Tanks

Improvements in Ship's Compasses

A Picturesque Italian Railway

The San Salvatore Electric Mountain Railway

By Frank C. Perkins

The Origin of Meteorites

Are They Terrestrial Products?

By William H. Pickering

Man as he ought to be and Man as he Is

The Bogoslav Islands

A Geological Curiosity

Aluminium Bronze

Osmotic Pressure and Living Cells

Some Experiments with Solution

The uses and Dates of Ancient Temples

An Interesting Astronomical Investigation

By Norman Lockyer

Engineering Notes

Trade Notes and Formulæ


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    October 02, 1909

    20% Sitewide for President's Day