Volume 56, Issue 1450supp
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Features
Advances in the Electro-Metallurgy of Iron
Use of the Incandescent Mantle in Lighthouses
Testing the Specula of Reflecting Telescopes
A Correction of a Well-Known Formula
A Silent Metronome
Sewage Purification Plants for Summer Cottages
Engineering Subjects at the British Association: A Retrospect
English Experiments in Coal-Dust Explosions
The Cow as an Ivory Producer
The Jenatzy Electrical Transmission
An English Edison Battery Test
Mekarski System of Compressed-Air Locomotives as used on Suburban Lines in Paris
By Our Paris Correspondent