Improved Diamond Stone Sawing Machine

Can We Stay?

Penholders

Prepare for the Centennial

The Microscope as a Criminal Detective

The Engineer's Trial Trip of the Pacific Mail Steamer City of Peking

Diagram Showing the General Arrangement of the Machinery and Coal Bunkers of the City of Peking

The Grape Phylloxera--Sixty Thousand Dollars Reward Offered for a Remedy for the Grape Disease

Improved Vertical Planing Machine

Practical Mechanism - September 12, 1874

Number VIII.

Improved Gas Regulator

India Rubber Shoes for Horses

Youngman's Improved Slide Valve

A Balloon Steering Device

New Treatment for Throat and Nose Diseases

Proceedings of the American Association for the Advancement of Science

Ventilation of Railway Tunnels

How Shall I Introduce My Invention?

Recent American and Foreign Patents - September 12, 1874

Answers to Correspondents - September 12, 1874

Schedule of Patent Fees

Canadian Patents - September 12, 1874

Communications Received - September 12, 1874