Volume 56, Issue 21
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Features
The Celestial World
Steam Cruiser Atlanta, U. S. N.
Improved Shuttle Cushioner for Power Looms
Beet Sugar Manufacturing Processes
Device for Detaching Horses from Vehicles
Carrier for Ash Pans
A Night Sight for Ordnance
Improved Camera Shutter
The Hudson River Tunnel
New Armored Cruiser for the Spanish Navy
A Self-Cleaning Metal Valve
A Large Casting
The Berdan Torpedo Boat
James Dwight Dana
Science in Toys
X
Polarized Light
Miscellaneous Inventions - May 21, 1887
Agricultural Invention - May 21, 1887
Engineering Inventions - May 21, 1887
Special - May 21, 1887
The Test by Results