Volume 20, Issue 16
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Features
Explosive Compounds for Engineering Purposes
The Effect of Light on Mineral Oils
The Sewing Machine—Its Origin and Suggestions for Improvement
The Law of Steam
Beet Root Sugar in the United States
Shafting, Pulleys, and Belts
Paige's Patent Improvement in Steam Boiler Furnaces
Self-Lubricating and Self-Clearing Drill
Koch's Combined Automatic Lifting Pump
Time as a Measure of Force
Idiosyncracies
The Burden of Memory
Death of James Harper
Steam Boiler Inspection and Insurance
New Publications
Are Utensils of Copper Injurious for Culinary Purposes?
Velocipede Notes
Answers to Correspondence
Official List of Patents
Issued by the United States Patent Office