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Improved Variable Cut-Off

Sand and Mud Baths

Discovery of an Old Boot and Shoe Sewing Machine Patent

The Mechanics of the Brain

How Pianos are Injured

The Financial Crisis

Scientific and Practical Information - October 11, 1873

The Fair of the American Institute

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

Checker Lozenge Package

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

The Globe Steam Gage

Improved Match Plane

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

    Business and Personal - October 11, 1873

  • Notes and Queries - October 11, 1873

  • Index of Inventions - October 11, 1873

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