Features
The St. Gothard Railway Tunnel
The First Step in Invention
The New Meteorite
Mechanical Inventions
New Soldering Tool
Improvement in Boilers
Ironing Table, Clothes Drier, and Step Ladder
New Mole and Gopher Trap
Speaking Picture Book
Engineering Inventions
New Car Door Fastener
Drying Oven with Constant Draught of Dry Air
Apparatus for Continuous Displacement
American Industries.--No. 35
Non-Conducting Covering for Heated Surfaces
Improved Riding Attachment for Cultivators
Medusæ
Miscellaneous Inventions
Departments
- Departments
Recent Inventions
Business and Personal
Notes and Queries
New Books and Publications
Index of Inventions
Patents
