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Features

Pulleys and Pinions for Millstone Spindles

By Charles B. Coon

A Timber Shoot in Bavaria

Steel vs. Iron for Ships

The “Arizona”

Apparatus for the Manufacture of Artificial Sandstone

Improved Calendering Rolls

Scouring Wool by Naphtha

Nickel at the Exhibition of Applied Science, Paris

Underground London

Volatility of Platinum in Chlorine Gas at High Temperatures

By Seelheim

Action of Lime on Silica in Mortar

By W. B. Boberts

Preparation of Perfectly Pure Hypophosphite of Soda

By M. Boymond

Analogy between the Conductivity for Heat and the Induction Balance Effect of Copper-Tin Alloys

The African Cable

A Nickel Battery

Cellulose

By M. Franchimont

Specific Heats and Melting Points of Various Refractory Metals

By J. Violle

Chloride of Lime Battery

By A. Niaudet

Decomposition of Chlorine

Optics

The Illumination of Cavities by Geissler's Tubes

By Horatio R. Bigelow

The Late Professor Clerk-Maxwell

Diphtheria and Milk

Novel Surgical Instrument

Some Important Topical Remedies and their use in the Treatment of Skin Diseases

By John V. Shoemaker

Obesity—A Few Thoughts on its Nature and Treatment

The Motor Functions of the Brain

Effects of Tea on the System

The Distinctions between Croup and Diphtheria

The First Silo

Our Cotton Crop for 1879

Lucern

A Cylinder of Cyrus the Great

Eccentricities of Birds

Figures of Sesostris

An Enormous Eel

The Cosmogony of Laplace

[Read before the American Philosophical Society, Sept. 19, 1879]

By Daniel Kirkwood

Artificial Fertilization of Oyster Eggs

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    January 10, 1880

    20% off for Memorial Day