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A Great Dynamo for the Paris Central Lighting Station

The Inventions of Thomas Davenport

By Franklin L. Pope

Lightning Rod Protection

By N. D. C. Hodges

High Speed Electric Railway Work

By O. T. Crosby

Train Shed of the Grand Central Passenger Station, Chicago

The Mannlicher Magazine Rifle

A Steering Screw Propeller

Service from La Goulette to Tunis by Boat

The Rainey Bank Tramway

Heating Cars with the Thermo- Siphon

Sea Wall to Protect Iron Ore Mining Operations

Boring and Chuck Lathe

Dr. Otto and his Invention

A Simple Elliptograph

Photography of Jets and Bursting Soap Films

Spontaneous Combustion

By Robert R. Tatlock

The Amenide Mummies at Thebes

The Italian National Exhibition at Palermo

Onion Culture for Pickling

Otto of Roses

How to Measure the Invisible

By Henry M. Parkhurst

Electric Bleaching

The Rejuvenescence of Crystals

Useful Engineering Books

Bleaching by Permanganate of Potash

Building Plans and Specifications

Tin from Tinplate Scrap

By Herr B. Schultze


  • Departments

    Patents!- April 18, 1891

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