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Features

Experiments on Whirlwinds, Waterspouts, and Revolving Spheres

Recent Phenomena on the Surface of Mars

Motion given to the air by the Wing of a Bird

The Potato at Rest

The Permanent and Temporary Effects Produced by Raising the Temperature of Iron

The Aristolochia Clypeata

Railroads in New Regions

Improved Methods of Heating Railway Trains

By C. Powell Karr

Light Draught Twin Screw Vessel or Nicaragua

James B. Eads

Principles and Practice of Ornamental Design

By Lewis Foreman Day

Treatment of Sewage Sludge

Word Blindness-Classification of the Forms of Aphasia '

By W. H. Thomson

Cotton Seed Oil in Olive Oil

Relations of Temperature to Health in Dwelling Houses

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April 09, 1887

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