Improved Gear Cutting Attachment For Lathes

The Inspection and Insurance of Steam Boilers

Cholera and its Treatment

Another Great Fire in Chicago, and the Materials Accumulating for One in New York

Four Hundred and Forty-Four Miles, at Over Forty Miles Per Hour, and Three Stops

Patent Office Justice

Politics in the Beehive

The Locust in Minnesota

The Mezzana-Corti Bridge Over the River Po

The Degerfors Iron Works, Sweden

Rolling Bridge Between St. Servan and St. Malo

Practical Mechanism - August 1, 1874

Number V.

Improved Sewing Machine Motor - August 1, 1874

The Sundridge Park Conservatory, England

The British International Exhibitions

How Shall I Introduce my Invention? - August 1, 1874

Hydrophobia-Practical Suggestions For:its Prevention and Cure

Recent American and foreign patents - August 1, 1874

Decisions of the Courts - August 1, 1874

Answers and Corresspondents - August 1, 1874

Communications Received - August 1, 1874

Canadian Patents - August 1, 1874