Volume 25, Issue 6
You are currently logged out. Please sign in to download the issue PDF.
Features
Tyndall's Fragments of Science for Unscientific People
Experiences of a Bureau Officer
The Neuropters
Combined Scissors and Button-Hole Cutter
Device for Suspending and Attaching Articles
Hildreth's Universally Adjustable Vise
Safety Valve Lever
Ore and Stone Crushing Machine
Patent Law Reform in England
Ventilation of the New York State Lunatic Asylum
Lightning Rods
Folly and Ignorance--Followed by Death and Destruction
Extension Cases--Smith's Plow Patent--Slawson's Car Fare Box--Textile Manufactures in India
Patent Proceedings in London
Scientific Intelligence- August 5, 1871
Electromagnetic Motors
Answers to Correspondents- August 5, 1871
Cancer Cure
Recent American and Foreign Patents- August 5, 1871
Queries- August 5, 1871
Official List of Patents- August 5, 1871
Issued by the U. S. Patent Office