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Cable Making of the East River Bridge

Recent Great Improvements in Electric Illumination

Torpedo Defence--Invention Wanted

Notes of Patent Office Decisions

Balancing Emery Wheels

New Investigations on Copper Alloys

The Great Railroad Strikes

Apparatus for Preparing Butter for Packing

Improved Grain Scale

A New Dynamometer

A Rotary Mould Board Plow

The Vapart Disintegrator

The American Toad

New Pump

Spelman's Improved Rowlock

Improved Chicken Coop

The Sea Monster

The Carolina Lizard

The Mole Cricket

A Self-Cooling Goblet

New Miscellaneous Inventions

New Agricultural Inventions

New Woodworking House and Carriage Building Inventions

New Household Inventions

New Mechanical and Engineering Inventions

Recent American and Foreign Patents

Communications Received


  • Departments

    Business and Personal

  • Notes and Queries

  • Index of Inventions

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August 04, 1877

Science for the Modern World