Apparatus for Emptying Cesspools

Technical Research and Education

Caoutchouc from Common Plants

Failure No. 2 of the Balloon to Europe

The Vienna Prizes

Curiosities of Butter and Churning

Street Pavements

Recent Gunnery Trials

Crude Petroleum for Fuel

Scientific and Practical Information - October 25, 1873

Inextinguishable Fire for Life Buoys

The English Steam Launch Firefly

Demming's Grown Sash Fastener

Peripolar Induction

Improved Press for Fruit, Lard, Etc.

That Ancient Sewing Machine

Letter from United States Commissioner

Number 15

Palmer's Power Spring Hammer

Improved Railroad Switch

A Forty Thousand Dollar Cow

Helicoidal Concavo-Convex Propeller

Rare Chance to Advertisers

Meeting of the British Association

A Valuble Drafting Instrument

Recent American and Foreign Patents - October 25, 1873

Communications Received - October 25, 1873

Answers to Correspondents - October 25, 1873