Volume 26, Issue 5
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Features
The Air Compressors at the Mont Cenis Tunnel
Illuminating Gas--Natural Gas Wells--Coal Gas--Water Gas Fallacies
Kenwood Tower, Highgate, Near London
Expose of the Tricks of the Davenport Brothers
Editorial Summary - January 27, 1872
The Franklin Statue in Printing House Square
Baldwin's Saw Clamp
What to do when you are in Trouble
Heating and Ventilation of Buildings
The Antiquity of the Iron Manufacture
The Natural Features of South America--New and Interesting Discoveries
The Spread of Small Pox
Polishing Wood
To City Subscribers - January 27, 1872
Scientific and Practical Information - January 27, 1872
Recent American and Foreign Patents - January 27, 1872
Under this heading we shall publish weekly notes of some of the more prominent home and foreign patents.