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Features

American Railways

Improved Air Refrigerating Machine

Goethe's Theory of Colors

An Elevated Road in 1836

The Library of Congress

Reservoir Blowpipe

By W. A. Ross

Some Scientific Results obtained in the Eighteenth Century

Musical Pitch

Redier's Barometric Balance

The Presentation of Sonorous Vibrations by means of a Revolving Lantern

By Henry Carmichael

Apparatus for Registering the Laws of Motion of Projectiles

Velocity of Fowling Piece Shot

The Rochester Astronomical Observatory

Temperature of the Soil in Winter

Thunderstorms

By Tait

Formation of Hippuric and Benzoic Acids in the Animal Organism during Fever

By T. Weyl and B. v. Anrep

Marie Joseph Jacquard

By Hugh McCall

Denis Papin

Destruction of the Pyramids

Ornamentation of Ancient American Pottery

Burmese Oil Wells

A Clew to the World's History Furnished by a Weed

Measles

By Alonzo Clark

Applications of Artificial Cold in Industrial Chemistry

Injury of the Cornea by a Foreign Body

By Cornelius R. Agnew

Juice of the Fig Tree

By Bouchut

New Artificial Cochineal

By L. Vignon and J. B. Boasson

Manufacture of Ammonia by means of Nitrogen Contained in the Air

By J. P. Rickmann

Automatic Apparatus for Washing Bone-Black

Oxalic Acid in Beet Leaves

By A. Muller

The Minor uses of Fish Products

Manure Experiments with Rye, Wheat, and Oats

By A. Pagel and H. Meyer

Symphytum Asperrimum as a Fodder

By E. Wildt

Protective Mimicry in Animals and Plants

Thirty-Eighth Year of a Farm without Stable Manure

By Stecher

The Animal Life of the Deep Sea

Artifical Fruiting of Trees

Botany of the Kuram Valley

Red Clover

By G. Haberlandt

Insecticides

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    November 13, 1880

    Complex Causes. Alternative Solutions.