Features
Electric Accumulators
Headway of Great Ships
Device for Operating Awnings
Improved Harrow and Pulverizer
Improved Horizontal Stationary Engine
Watch for the Blind
Vegetable Grater
Improved Lamp Post
Clearing Attachment for Grain Drills
Folding and Pasting Machines
Violin Tuning Peg
A Perpetual Motion Machine--Will it Work?
Steno-Telegraphy
The Porcupine in the Berlin Zoological Garden
A Simple Galvanometer
The Mechanical Working of Ballast Quarries
Experiment in Magnetism
Agricultural Inventions - May 14, 1887
Engineering Inventions - May 14, 1887
Miscellaneous Inventions - May 14, 1887
To Inventors - May 14, 1887
Departments
- Letters
Correspondence - May 14, 1887
- Recommended
New Books and Publications - May 14, 1887
- Departments
Business and Personal - May 14, 1887
Notes and Queries - May 14, 1887
Index of inventions - May 14, 1887
