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Improved Variable Cut-Off

How Pianos are Injured

The Mechanics of the Brain

The Financial Crisis

Sand and Mud Baths

Discovery of an Old Boot and Shoe Sewing Machine Patent

Scientific and Practical Information - October 11, 1873

The Fair of the American Institute

Checker Lozenge Package

Sprague's Combined Sash Lock, Sash Holder, and Weather Strip

Improved Boring Machine

The Evaporation of Water by Plants

Up the Amazons

No. 1

Letter from United States Commissioner Professor R. H. Thurston

Number 13

Combined Hay Rake and Tedder

Improved Combined Roller and Irrigator

Improved Match Plane

The Globe Steam Gage

Improved Shoemaker's Pinchers

Ventilation of Sewers

Recent American and Foreign Patents - October 11, 1873

Answers to Correspondents - October 11, 1873

Communications Received - October 11, 1873

American Iron Works


  • Letters

    Correspondence - October 11, 1873

  • Departments

    Notes and Queries - October 11, 1873

  • Business and Personal - October 11, 1873

  • Index of Inventions - October 11, 1873

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October 11, 1873

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