SA Supplements

A Great Dynamo for the Paris Central Lighting Station

The Inventions of Thomas Davenport

Lightning Rod Protection

High Speed Electric Railway Work

The Mannlicher Magazine Rifle

Train Shed of the Grand Central Passenger Station, Chicago

The Rainey Bank Tramway

A Steering Screw Propeller

Service from La Goulette to Tunis by Boat

Sea Wall to Protect Iron Ore Mining Operations

Boring and Chuck Lathe

Heating Cars with the Thermo- Siphon

Dr. Otto and his Invention

A Simple Elliptograph

Spontaneous Combustion

Photography of Jets and Bursting Soap Films

The Amenide Mummies at Thebes

Onion Culture for Pickling

The Italian National Exhibition at Palermo

How to Measure the Invisible

Otto of Roses

The Rejuvenescence of Crystals

Electric Bleaching

Building Plans and Specifications

Tin from Tinplate Scrap

Useful Engineering Books

Bleaching by Permanganate of Potash

Patents!- April 18, 1891