Volume 14, Issue 12
You are currently logged out. Please sign in to download the issue PDF.
Features
Report of the Commissioner of Patents
Garrett's Hay Fork
Chesley's Globe Valve
Proteus--The New Optical Deception
Polytechnic Association of the American Institute
Plimpton's Parlor and Ice Skates
Farmers' Club
The Passage of Heat through Water
Town Sewage as Manure
A Point Overlooked
Patent Claims
Issued from the U. S. Patent Offic
Mechanics
Inventors, Manufacturers