Volume 10, Issue 239supp
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Features
Disconnecting Compound Engines
The New Scandinavian Driving-Band
The Plattsmouth Bridge Over the Missouri
Sectional Steam Launch
Carpet Sewing Machine
Temporary Bridges
English Railways
The Sinking of Railways in Bogs
The Austrian Lloyd's Arsenal at Trieste
A Patent Age
The Prussian Patent Office
New Sounding Lead
On an Automatic Mercurial Pump
Theory of the Microphone
Interesting Electrical Researches
Transfer of Negatives
Development of the Latent Photographic Image
On Substances Possessing the Power of Developing the Latent Photographic Image.