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Features

The International Bridge over the River Mino

What is the Best Material for Street Railroad Rails?

By Augustine W. Wright

A Torpedo Boat at Paris

New Bridge, Kennet River

The Nordenfelt Machine Guns

Waste in Cotton Mills

Canned Food

On the Employment of Gas for Cooking

By W. Ivison Macadam

Lactic Acid in the Stomach

On a Variation in the Size of an Image on the Retina according to the Distance of the Background on which it is Seen

By Alfred Brothers

Mind and Motion

St. Paul's Vicarage, Forest Hill

Rousdon Observatory, Devon

The “Bassano-Slater” Improved Telephone

The Hydrodynamic Researches of Professor Bjerknes

By Conrad W. Cooke

On the Conversion of Heat into useful Work

By William Anderson

The Eroding Power of Ice

By J. S. Newberry

North American Ferns

Anchomanes Dubius

Life at the Bottom of the Sea

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July 25, 1885

Think Outside the Gift Box