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Siniking a Concrete Mine Shaft

The Simple Methods of Former Days Superseded


By A. E. Humphries

Elements of Electrical Engineering—XIX

Measuring Instruments for Direct Currents

By A. E. Watson

Tripoli Near Seneca, Mo

An Undeveloped Montana Coal Field

A 700-Square-Mile Area Added to our Fuel Resources

Clouds, Fog and Blue Sky

The Various Forms of Water

By Poynting

New Discoveries in Connection with “Brown's Molecular Motion”

The Founding of the Royal Institution

How Water must be Labeled

Why are Eggs Colored?

The Curious Phenomena of Eggshell Pigmentation

By W. P. Pycraft

A Capture of Full-Grown Gorillas

By Th. Zell

Greek Vases, their Scientific Study

By James Rignall Wheeler

Nerve as a Master of Muscle

The Ties Between Muscular and Nervous Activity

By C. S. Sherrington

The Story of the Tobacco Pipe

The Wor Ldwide Distribution of Smoke Tubes

By T. P. Cooper

Modern Physics

By Ernest Fox Nichols

Trade Notes and Formulæ

Engineering Notes


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