The Burdict Bolt Heading Machine

The Dangers of Sewage Irrigation

Plaster of Paris Manufacture

Teeth

The Road Steamer and Omnibus

Anchor Beam Support for Brick Walls

The New Hotel Cairo Egypt

Occasional Notes

Dugdale's Universal Clothes Washer

Steam Boiler Legislation in England

Is the World Round or Flat ?

New York Police Inspection of Boilers

Stanislas Sorel

Scientific Intelligence- September 2, 1871

The Grahamite Asphalt Pavement

Editorial Summary- September 2, 1871

Answers to Correspondents- September 2, 1871

Queries- September 2, 1871

Official List of Patents- September 2, 1871

Issued by the U. S. Patent Office

Applications for Extension of Patents- September 2, 1871

Recent American and Foreign Patents- September 2, 1871