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Porcelain Manufacture in New York

A Trade Mark Rejection

Partnerships of Ants and Plants

Models by Mail

Increase of Postal Charges

Frozen Pipes and Hydrants

Molecular Changes in Metals

By R. H. Thurston

Improved Sugar-Refining Tank

To Make Ovals and Circles of any Size

Measuring Building Materials

Improved Tree Protector

Gathering and Storing Ice

Practical Mechanism

By Joshua Rose

Improved Device for Laying Out Sashes

Improved Hydraulic Motor

An East Indian Ornamental Shrub

The Cut-Leaved Begonia

Decisions of the Courts - March 27, 1875

Recent American and Foreign Patents

Canadian Patents - March 27, 1875

Communications Received - March 27, 1875


  • Letters

    Correspondence - March 27, 1875

  • Recommended

    New Books and Publications - March 27, 1875

  • Departments

    Business and Personal - March 27, 1875

  • Notes and Queries - March 27, 1875

  • Index of Inventions - March 27, 1875

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March 27, 1875