Volume 13, Issue 14
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Features
The Great English Machine Works
The Fair of the American Institute
Foreign Summary
Dibble's Dental Apparatus
Notes on New Discoveries and New Applications of Science
Up in a Balloon
The Naval Engines
Recent American Patents
Camerer's Safety-Valve Balance
Boswell's Mucilage Bottle
New Form for Coins
Pistons Without Packing
Soda Water--What it is and How it is Made
A Secret Telegraph
Pass Them Around
Patent Claims
Issued from the United States Patent-Office