Volume 9, Issue 22
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Features
Miscellaneous Summary
Nominal Horse Power
Inventions and Discoveries Abroad
Shape of Lasts, Boots and Shoes
Opening of a New Campaign
Reckless Use of Fire-Arms
Oxygen, Ozone and Antozone
Recuperation of the Globe
The Coal Question Again
The Labor Movements
Trial of O. R. Mumford's Percussion Fuse
Manufacture of Enfield Rifles
Carbolic Acid
Patent Claims
Issued from the United States Patent-Office