Volume 36, Issue 7
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Features
Special Machine Work Versus Manipulative Skill
Matter as a Mode of Motion
Putting in Coal
State Patent Laws
Recent Studies of Luminous Flames
The Flower Trade of New York
Ornithological Deformities
Solar Photographs
Improved Safety Valves
A Tractile Power Economizer
Communications - February 17, 1877
Practical Mechanism - February 17, 1877
Hydraulic Punching Machine
Improved Cow Milker
Faience Ware
The New Sun and its Disappearance
The Resources of the Pacific Coast
Recent American and Foreign Patents - February 17, 1877
New Mechanical and Engineering Inventions