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The Congressional Report of the Commissioner of Patents

The Living Jerboa in the Zoological Garden of Berlin

New Observations, on the Language of Animals

By M. De Lacaze Duthiers

Modification of our Climate

By Joseph Wallace

Pentapterygium Serpens

The Eruption of Krakatoa

The Perforation of Flowers

Electricity in Horticulture

Electricity in Agriculture

By Clarence D. Warner

The Treatment of Rattlesnake Bite by Permanganate of Potassium, Based on Nine Successful Cases

By Amos W. Barber

Chinese Competitive Examinations

Chlorine Gas and Soda by the Electrolytic Process

High Speed Engine and Dynamo

A Steam Street Railway Motor

Completion of the Mersey Tunnel Railway

Twenty-Four Knot Steamers

The Military Engineer and his Work

By W. R. King

How Enameled Letters are Made

How Mechanical Rubber Goods are Made

Burning Brick with Crude Oil Fuel

New Boron Compounds

Action of Caustic Soda on Wood

By M. H. Tauss

Investigation of a Mound near Jefferson City, Mo

By A. S. Logan

A New Laboratory Process for Preparing Hydrobromic Acid

By G. S. Newth

Boron Salts

Sapotin: A New Glucoside

By Gustave Michaud

Some means of Purifying Water

Natural Sulphide of Gold

By T. W. T. Atherton

Detection of Peanut Oil in Olive Oil

Hydroxylamine

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    February 13, 1892

    Beyond XX and XY

    Biology. Identity. Equality.