Features
Codfish as Food for Man, Beast, and Vegetable
Furrowing and Pitting in Locomotive Boilers
The Wire Rope Tramway at Brighton England
A Beetle on the War Path
On Ruthenium
Rubber Tip for Furniture Legs
How People Live Too Fast
Is Hydrogen a Metal?
The Steam Man
The Value of Science
The Yacht Races
Washington Considered as a Place for an Exhibition
Artificial Stone
Answers to Correspondents- May 21, 1870
Recent American and Foreign Patents- May 21, 1870
Official List of Patents- May 21, 1870
Departments
- Letters
Correspondence- May 21, 1870
- Recommended
New Books and Publications- May 21, 1870
- Departments
Business and Personal- May 21, 1870
