Features
Dr. Henry Draper's Recent Discoveries in Spectroscopic Analysis
Indicating Steam Engines
Gail Borden
Steam on Canals
Proceedings of the Patent Convention
A Year's Inventive Progress
Psychic Force
Scientific and Practical Information - January 31, 1874
Electro-Plating Balance
The Yama-Mai, or Oak Tree Silkworm
Hydraulic Engineering Extraordinary
The Canopus Stone
The Silver Mines of Peru
The Baffle Drill-Proof Safe
Improved Furnace Bridge Wall
Improved Patent Candy Cutter
Overhead Steam Cranes for Dock Purposes
Decisions of the Courts - January 31, 1874
United States Circuit Court--Southern District of New York PATENT GRAIN AND GRASS HARVESTERS.—CYRENUS WHEELER JR., vs. CYRUS H. MCCORMlCK.
Recent American Foreign Patents - January 31, 1874
Answers Correspondents - January 31, 1874
Communications Received - January 31, 1874
Canadian Patents - January 31, 1874
Departments
- Letters
Correspondence - January 31, 1874
- Recommended
New Books and Publications - January 31, 1874
- Departments
Business and Personal - January 31, 1874
Index of Inventions - January 31, 1874
