Volume 42, Issue 25
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Features
The Problem of the Ice Supply for New York City
Great Yield of a Blast Furnace
The Howgate Polar Expedition
The Millers in Council
Our Iron and Steel Imports
Automatic Feed Water Apparatus for Steam Boilers
Climbing Apparatus
Calendar Inkstand
The Kuilenburg Bridge
Safety Appliance for Releasing Horses
Sled and Boat Combined
Improvement in Stovepipe
Edison's Ore Separator
Some Experiments With Small Batteries
Amateur Mechanics
Glass Engraving
Miscellaneous Inventions
The Babyboussa of Malacca
The Barbastelle
Roofed Country Roads
Engineering Inventions
Recent Decisions Relating to Patents, Copyrights, Etc
Supreme Court of the United States