Volume 7, Issue 157supp
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Features
The Werdermann Electric Light
Report of Sounds by Electricity
Electric Lamps
Artesian Wells
Forces in the Telephone
The South Pacific Coast Railroad
The Eddystone Lighthouse
Comparative Wear of Iron and Steel Rails
On The Direct Process of Making Wrought Iron and Steel
Parian Ware at the Paris Exhibition
The Carr Disintegrating Flour Mill
A Story of Science
By One Who Knows Nothing About it