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International Fishery Exhibition, Berlin

American Bacon and Pork

The Electric Eel

Coal-Getting Machine

Intelligence of Seals

The Food of Birds

The Railway up Vesuvius

An Interesting Experiment

On the Adhesion of Belts

By J. H. Cooper

New Gas Soldering Iron

David's Improved Draughting Templet

Popular Fallacies in Engineering, and How to Meet Them

By Henry Morton

Direct-Bolting Portable Mills (Aubin's System)

Experiment of MM. Lontin and De Fonvielle

By M. Jamin

New Enlarging Lens for Magic Lantern

Wind Pressures

The Durability of Gutta Percha

Nitrogen in Iron and Steel

Washington Territory

Development of Acetic Acid in Beer

The South Pacific Islands

New Experiments on Magnetic Attractions

By M. Ader

A Hawaiian Almanac

The Preservation of Timber

By J. W. Putnam

The Cultivation of Barley

An Advance in Therapeutics

The Stranger within thy Gates

Alders for the Lawn

Stimulating Drinks

Forest Trees of North America

By Charles S. Sargent

Unseen Enemies

A Quick Test for Aloes

Man Prehistoric, Present, and Future

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    July 10, 1880

    Beyond XX and XY

    Biology. Identity. Equality.