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Barrel Machinery

Lard Cheese

The Industrial Condition of Canada

The Zodiacal Light

Whose Boilers Explode

Storm Warnings in Court

Air and Water

Sanitary Arrangements in Houses

Artificial Daylight

Miscellaneous Inventions

Improved Rope-Clamp

New Folding Bath Tub

Improved Swivel-Holder for Fish-Hooks

Novel Scissors

New Telephone Transmitter

By Geo. M. Hopkins

The Cheiromeles

By Frederio A. Lucas

The Horned Screamer

Mechanical Inventions

Communications Received


  • Departments

    New Inventions

  • Notes and Queries

  • Business and Personal

  • Index of Inventions

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March 19, 1881

Of Shamrocks and Science

Happy St. Patrick’s Day