Features
“On a Piece of Chalk”--A Lecture to Working-Men
The Protuberances on the Sun
Editorial Summary
Sulphur--Its Uses in the Arts
Manufacturing, Mining, and Railroad Items
Recent American and Foreign Patents
Under this heading we shall publish weekly notes of some of the more prominet home and foreign patents
Answer to Correspondents
Overwork and Underwork
To Inventors
Some Suggestions on Workingmen's Combinations
Accurate Observation
Something Worth Consideration
The Manufacture of Straw Board
Ventriloquism
Manufacture of White Lead
Wealth and its Source--A Graceful Recognition
Official Report of Patents and Claims
Issued by the United States Patent Office
Departments
- Departments
Correspondence
Business and Personal
