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On a New Dynamometer for Measuring the Power Delivered to the Screws of Large Ships

Tests of Stationary Steam Boilers at the Centennial

Mechanical Appliances Used in the Construction of the Heading Under the Severn, for the Severn Tunnel Railway *

A New form of Marine Boiler

Refrigerating Railway Car

Improved Gas Tar Pump

The Higley Anti-Friction Roller Bearings

Air Engines

Automatic Steam Shut-Off

Compound Lathe and Oval Eccentric Chuck

Sinking Through Aqueous Strata without Pumping Machinery

A Model of a Mine

Locating and Describing Mining Claims

Who May Take Up Clams on the Public Lands and How it Should be Done

How to Use the Carpenter's Square

By John O*amp*apos;Connell

Manufacture of Slag Wool

Needlework *

By Mary W. Willis

Bleaching Wool without Stoving

New Mordant for Fixing Coloring Matters

Dyeing Paper with Aniline Colors

Aniline Writing Inks

Preparation Of Soluble Glass from Fossil Meal

By F. Capitaine

Cedar Wood

Diminishing the Inflammability of Wood

Use of Soluble Glass in the Textile Industry

By H. Gbothe

Valuable Recipes

Improved Street Cars

Indian Corn

The Trial of the Pyx

New Method of Preparing Music Printing Plates

Oxygen in Steels

By Sergius Kern

Flue Dust

The Zinc Mines of Lancaster County, Pa

Designs for Conservatories

Russian Scientific News

Crystals of Cobric Acid

Being the Macroscopical Active Principle of the Cobra Poison

Freezing Mixtures *

Manufacture of Alum

A Remarkable Vegetable Poison

Cleaning of Plates and Lenses

Cleaning the Daguerreotype

By W. L. Shoemaker

Emulsion Manipulations

By H. J. Newton

Photo Hints

New Derivative of Indigotin

By P. Schutzenberger

Photography by Lightning

Unalterable Silver Bath

Preparation of Chemically Pure Grape Sugar

By C. Neubauer

The Leipzig Chess Congress

Evans Gambit

King's Bishop's Gambit

Solutions to Problems

The British Counties Chess Association


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