Volume 20, Issue 21
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Features
Leon's Kimasthene
Beet Root Sugar
Statistics of the Production of Iron
Formation and Phenomena of Clouds
Harris' Improved Patent Shutter and Blind Opener and Fastener
Rowe's Mode of Fastening Cards to Cylinders
The Preparation of Cotton Ware for Dyeing and Printing
Important Decision About Designs
Views on the Central Pacific Railroad
Completion of the Pacific Railway
Explosive Compounds
Dust
Affairs at the Patent Office
Discussion of Purely Speculative Topics—To Correspondents
Editorial Summary
The Velocipede in Europe
Decision of the Commissioner of Patents on Design Applications
Manufacturing, Mining, and Railroad Items
Official List of Patents
Issued by the United States Patent Office