Volume 30, Issue 2
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Features
The Prime Movers and Their Recent Progress
New Patent Conventions - January 10, 1874
Progress of the Centennial
Expert Engineering
To Our Subscribers
Improved Atomizer
Improved Portable Fence
Improved Trotting Gear
Improved Tool Holder
Metaline
Scientific and Practical Information - January 10, 1874
Alumina, from the Clay to the Sapphire
Inside a Church Organ
Barrow in Furness, Lancashire, England
The New Exploration of the Amazon River, by Professor Orton.---Over the Andes
No. 5
Value of Patents, and How to Obtain Them - January 10, 1874
Practical Hints to Inventors.
Decisions of the Courts - January 10, 1874
United States Circuit Court---District of Massachusetts.
Recent American and Foreign Patents - January 10, 1874
Answers to Correspondents - January 10, 1874
Communications Received - January 10, 1874
How to Obtain Patents and Caveats in Canada - January 10, 1874
Canadian Patents - January 10, 1874
LIST OF PATENTS GRANTED IN CANADA
DECEMBER 15 TO DECEMBER 17, 1873.