Skip to main content


Wool and Flax Fabrics

Improved Stump-Puller

A Destructive Invention

The War

Science in Modern Warfare

A British Captain on Iron Ships

Rodman's Experiments with Gunpowder

Recent American Inventions

De Brame's Revolving Cannon

Condition of the Patent Office

A Word about Ourselves

Safety Clothing—A Sad Death

Case's Tube for Canteens

Double Twine Box

Don't Bite the Cartridges

The Ketchum Reaper Patent Extension

Hon Joseph Holt on the Supreme Bench

What Guns are Best

Telegraph Cables—Best Insulating Material—Next Ocean Telegraph

Foreign Trade

Combination Rifles

A Word to the South

Southern Harbors of the United States

Southern Honesty

Patent Claims - July 27, 1861

Instructions about European Patents with a Synopsis of the Patent Laws of the Various Countries

To Our Readers

Prospectus the Scientific American

Blasting by Electricity


  • Letters

    Correspondence - July 27, 1861

  • Departments

    Notes and Queries - July 27, 1861

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
July 27, 1861

20% Sitewide for President's Day