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What is the Best Material for Street Railroad Rails?

By Augustine W. Wright

The International Bridge over the River Mino

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

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

Lactic Acid in the Stomach

St. Paul's Vicarage, Forest Hill

Mind and Motion

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


  • Departments

    Patents - July 25, 1885

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