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Features

American Industries.--No. 67

Writing Ink

Is Glucose Unwholesome?

The Encouragement of Inventions--With a Reservation

The Sun Spot Maximum

Another New Disinfectant

Improved Hand Hoe

Pencil Holder and Scissors

New Adjuster for Mirror and Picture Frames

New Ice Crusher

Convertible Traveling Cap and Scarf

Cooking by Steam

International Geographical Congress

Electro-Metallurgy

Miscellaneous Inventions

Improved Wagon Brake

Apparatus for Decorating Pottery

Weaver Birds

Botanical Notes

Experiment on the Lake of Geneva to Ascertain the Velocity of Sound in Water

Geological Survey of New Jersey

Mechanical Inventions

Communications Received

Departments

  • Departments

    Recent Inventions

  • New Inventions

  • Business and Personal

  • Notes and Queries

  • Index of Inventions

  • New Books and Publications

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February 26, 1881

Complex Causes. Alternative Solutions.