Features
Present Steam Engine Practice
Forming Spiral Springs
The Nile and the Soudan
Hostile Patent bills now Before Congress
Uniformity of Shop Heat
Improved Steam Cooker
Trunk Life Preserver
Improved Hose Coupling
Boring, Drilling, and Surfacing Machine
Improved Nut Lock
A Novel Velocipede
Dredger on the Tancarville Canal
Max Von Pettenkofer
A Recent Boiler Explosion at Cincinnati, Ohio
Engineering Inventions
Agricultural Inventions
Mechanical Inventions
Miscellaneous Inventions
Departments
Correspondence
Notes and Queries
Business and Personal
New Books and Publications
Index of Inventions
