Features
Scientific Use of the Imagination- November 19, 1870
Professor Tyndall's Lecture on Electrical Phenomena
The Stereoscope
Progress of Invention Abroad- November 19, 1870
Scientific Intelligence- November 19, 1870
Device for Spreading Circular Saw Teeth
Power's Endless Ladder Hod Elevator
Bourne's Spherical Steam Engine Governor
The Motive Power of Expanding Gases
How Long Shall Nitro-Glycerin Continue Its Work of Destruction?--The Fairport Explosion
Roads and Road-Making
Resignation of Commissioner Fisher
Time and Distance
Attempt to Abolish the Patent Office
Letters from the South- November 19, 1870
Razing Band Saws
Answers to Correspondents- November 19, 1870
Queries- November 19, 1870
Recent American and Foreign Patents- November 19, 1870
Official List of Patents- November 19, 1870
Departments
- Letters
Correspondence- November 19, 1870
- Recommended
New Books and Publications- November 19, 1870
- Departments
Business and Personal- November 19, 1870
