Compound Armor Plates

Improved Fast Torpedo Boats

The Destruction of Submarine Cables

Harvey's Improved Torpedoes

Tests of Car Axles

The underground Railways of London

New United States Government Rules in Respect to Boilers, Boiler Inspection, Stamping and Testing of Boiler Plates, Fire Apparatus, Boat Lowering Devices, and Life Preservers

Circular to Supervising and Local Inspectors of Steam- Vessels, Boiler-plate Manufacturers, Boiler-makers and others

Progress of the Great New Bridge over the Hudson River at Poughkeepsie

Improved Tube-Stopper

The Oil Producers' Convention

The California Petroleum Industry

Malt Cleaning Machine

Nomenclature of Building Stones and of Stone Masonry

“Piling up” in Catamarans

Examples of Domestic Architecture of France and Italy

Boxwood

The Cariboo Quartz Ledges

Roofing Paint

Chemistry and Mineralogy

The Density of Liquid Oxygen

The Coloring Matter of “Boletus Luridus”

New Red Coloring Matter from Peach Leaves

Neurine

Coloring Matter of Velella Limbosa

A New General Synthetical Method of Producing Hydrocarbons, Etc.

Specific Gravity of Iodine Trichloride

Solubility of Alkalis in Ether

Pads

Oxygenized Graphite and Platinum

Oxidation of Iron in a Gas Furnace

Natural Sulphides

Magnesium Fluoride

Lithium, Cæsium, and Rubidium from Lepidolite

Iodine and Alcohol on the Platino- Nitrites

Determining Vapor-Densities

Davyum

Crystallized Grape-Sugar

Treatment of Diabetes Mellitus with Salicylate of Soda

The Morbid Anatomy of Yellow Fever

Retarding Action of Glycerine

Physical Dilatation of the Urethra

Optically Inactive Sugar

Manganese Sulphide

Maintenance of Constant Temperatures

Deposit of Fat in Animals on Different Diets

Dissection of a Gorilla

Estimating Bismuth Volumetrically

Gold in Emulsion

The Limnoria and the Teredo

An Improved Method of Protection Against their Ravages in Timber

Hen Manure

Eugene Delmar, of New York

Shields and Delmar

Solutions to Problems

The Cleveland Voice Problem Tourney

morality of Chess