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Features

New Machine for Cleaning and Separating the Fibers of Leaves

Virchow on Soups and Broths

The Steering and Propelling Gear of the Alarm

Mechanical Inventions

Improved Spindle

Improved Steam Engine

Novel Striking Mechanism for Electric Bells

New Pegging Awl

Jupiter

New System of Brick Making

Tapir and Young

Natural History Notes

Miscellaneous Inventions

Departments

  • Departments

    Recent Inventions

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

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