Improved Pump, Permanent Industrial Exhibition in Paris, and more

Notes on Military and Naval Affairs

The Stevens Battery

Petroleum--Refineries--Explosions

Valuable Receipts

Miscellaneous Summary

A Telegram

New Iron Bridge at Harlem--A Great Planing Machine

Our New Iron-Clad Navy

Emery's Cotton Gin

Thanks to Our Friends

The London Exhibition

Inventions of the Day

Interesting Reminiscences

Recent American Inventions - August 2, 1862

Patent Claims

Issued From The United States Patent Office

To Our Readers