The Influence of Intense Cold on Steel and Iron

Oak Graining in Oil Colors

Knots and Splices

Impregnating Wood with Tar or Other Preserving Material

Portable Writing and Copying Case

Belt Tightener

Boardman's Combined Tool

Rambles for Relics

Silk Culture

Combined Trunk and Rocking Chair

Barnes' Ventilator for Mattresses, Etc.

Smith's Infant Dining Chair

Rubber Tires for Traction Engines

The Sherman Process

A Scientific and Technical Awakening

Central Shaft of the Hoosac Tunnel

Report of the Judges of Group 1, Department V. of the Exhibition of the American Institute for 1870. The Allen Engine

Warming and Ventilating Railroad Cars

A Museum of Art and Natural History

Lyceum of Natural History

The Mineral Resources of Missouri

Scientific Intelligence- March 18, 1871

Answers to Correspondents- March 18, 1871

Applications for Extension of Patents- March 18, 1871

Recent American and Foreign Patents- March 18, 1871

Official List of Patents- March 18, 1871

Issued by the U. S. Patent Office

Queries- March 18, 1871