Volume 6, Issue 4
You are currently logged out. Please sign in to download the issue PDF.
Features
Notes on Military and Naval Affairs
Surface Condensers for Steam Engines
Forming Cement Drains
How to Cut a Bevel for a Hopper
Combination Mop Scrubber
The Defense of our Harbor--Prompt Action Needed
Death of Samuel Colt, the Inventor
Trial of Warlike Inventions
The Chemistry of Coal
Rise in the Price of Cotton Goods
Resignation of the Secretary of War
Military Training in Common Schools
Water as a Disinfectant
The Bottle Law Unconstitutional
Patent-Office Illustrations
Learning to Shoot--Wesson's Breech-Loading Rifle
Notes on Foreign Inventions and Discoveries
Recent American Inventions
Patent Claims
Issued from the United States Patent Office