Crooked on Disinfectants

Improved Balanced Governor Valve

Ruggles's Shaft Coupling

Gun-Paper

Growth of Our Navy

Useful Plants

The War Powers of Europe and America

Interesting to Oil Men and Miners

Improved Portable Steam Engine

The Ames Gun

New Steamboat Fuel

Miscellaneous Summary

Low's Shingle Machine

The Non-Recoil Gun

The Scientific American---Commencement of Volume Xv

Iron-clad Ships

Honors to Mechanical Engineering

The Adaptation of Implements to Labor and the Laborer

Improved Steam Boiler

Allen's Improved Valve

Paris Universal Exhibition

Patents in Congress Again

The Culture and Manufacture of Silk

The Value of Timber

Patent Claims

Issued from the U. S. Patent Office

Hart's Cravat Holder