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Features

Preservation of Insects

Quadriga for the New House of Parliament, at Vienna

Glazed Ware Finial

Wage Earners and their Houses

MANUFACTURERS AS LANDLORDS.

Fire Doors in Mills

Steel Structures

Hotel De Ville, St. Quentin

A Method of Measuring the Absolute Sensitiveness of Photographic Dry Plates

By William H. Pickering

Natural Gas Fuel and its Application to Manufacturing Purposes

By Andrew Carnegie

A Gas-Engine Water-Supply Alarm

Soldering and Repairing Platinum Vessels in the Laboratory

By J. W. Pratt

The Helicoidal or Wire Stone Saw

Automatic Safety Gear

The Water Supply of Ancient Roman Cities

Portable Prospecting Drill

Electricity in Warfare

By Lieut. B. A. Fiske

Steam Engine Economy

By John Lowe

Meucci's Claims to the Telephone

An Electrical Centrifugal Machine for Laboratories

By Alexander Watt

Transmission of Power by Electricity

The Locked and Corded Box Trick

A Perpetual Calendar

Prices of Metals

An Accomplished Parrot

The Roscoff Zoological Laboratory

A Year's Scientific Progress in Nervous and Mental Diseases

By L. A. Merriam

The Murænæ at the Berlin Aquarium

Metamorphoses of Arctic Insects

“Elastic Limit” in Metal

Scaring the Baby Out

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December 19, 1885

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