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Features

On the Action of Screw Propellers

By James Howden

Labor-Saving Machinery in Massachusetts

Improved Locomotive and Tender Steam Brake

Varnish

By Zingler

Bronze Casting

Pipes for Gas and other Purposes

Separation of Middlings by Air Currents, Etc.

Artificial Laurel Water

By A. Ripping

A Simple Gas Burette

By H. Bunte

Tannin Extract Factory

Anthracite Blast Furnace

Improvement in Revolving Furnaces

Soluble Glass

Galician Ozokerite and Ceresin

By J. Grabowsky

Origin of Mineral Oils

By D. Mendelejeff

The Formation of Compounds at a Temperature Considerably above that of their Decomposition

By Troost and Hautefeuille

Boric Acid; Methods for its Detection; Its Origin and Mode of Formation

By M. L. Dieulafait

Gas Apparatus for Quantitative Blowpipe Analyses

By T. Hirschwald

Permeation of Platinum by Gases

By H. Helmholtz

Copper Lining for Furnaces

The Rothamsted Agricultural Experimental Station

Cranberry Culture

By A. K. Gile

The Cranberry as a Pot Plant

Influence of Hunger on the Weight of Cattle

Keeping Eggs

Horticultural Notes

Poultry Houses

Obstetric Mortality in Vienna

A Lady Practitioner in Disguise

Lectures on Paralysis and Convulsions as Effects of Organic Disease of the Brain

Delivered at the Bellevue Hospital Medical College, N. Y., 1877

By C. E. Brown-Sequard

Lessons in Mechanical Drawing

Second Series, No. XV

By C. W. MacCord

Travels of the Potato Beetle

Bahama and Trinidad Timber

The French Exhibition.—Rejection of a Remarkable American Exhibit

The Wonderful Fossil Beds of Oregon

Design for Harp

Scientific American Chess Record

R. B. Wormald, of London

The Detroit Free Press Award

Wormald and De Vere

Solutions to Problems

No. 27.

By W. A. Shinkman

The International Chess Congress in Paris

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