Features
New Bread
Magnetism and Diamagnetism
The Leaf-Cutter Bee
Harris' Patent Self-Acting Mashing Machine for the use of Brewers
Patent Metallic Post Butt
The Law of Compensation
Improved Weapons in European Warfare
Ninety Degrees in the Shade
The Action of Water on Lead, Tin, and Copper
Saratoga Springs
The Uses of Soluble Glass
Who Discovered Nitro-Glycerin
Compressed Air as a Motor for Subterranean Railways
Compressed Air, Ammonia, and Rubber vs. Mule Power
Scientific Intelligence- August 13, 1870
Answers to Correspondents- August 13, 1870
Applications for the Extension of Patents- August 13, 1870
The Mitrailleuse
Official List of Patents- August 13, 1870
Recent American and Foreign Patents- August 13, 1870
Departments
- Letters
Correspondence- August 13, 1870
- Recommended
New Books and Publications- August 13, 1870
- Departments
Business and Personal- August 13, 1870
