Features
Inventors at the World's Fair
An Improved Boiler Furnace
Improved Method of Handling Nitro-Glycerine
Improved Steam Whistles
A Salt Sprinkler for Table Use
Eruption of the Volcano of Etna
Great Mineral Water Baths
Cyrus W. Field
Inexpensive Electric Motors
A Visit to Chalcedony Park, Arizona
The Water Lily House at Kew
Departments
- Departments
Recently Patented Inventions- July 23, 1892
Notes and Queries- July 23, 1892
Business and Personal- July 23, 1892
Index of Inventions- July 23, 1892
To Inventors- July 23, 1892
Patents- July 23, 1892
