Scientific American Magazine
Volume 47, Issue 21You are currently logged out. Please sign in to download the issue PDF.
Features
A New Era of Alloys
Crane for Transferring Cars
The Transit of Venus
Recent Progress in Oyster Farming
New Stop-Valve for Locomotive Steam Pipes
Machine for Making Spikes
Siemens' Unipolar Machine
Garden Destroyers.—Gall Flies of the Oak—"Cynipidæ."
Theater Fires.--Fireproof Fittings Demanded
Engineering Inventions
Miscellaneous Inventions
Mechanical Inventions
Agricultural Inventions
Departments
Correspondence
Recently Patented Inventions
Recent Inventions
Index of Inventions
Notes and Queries
Business and Personal
