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Excavating and Pipe Laying Apparatus in Use on the Brooklyn Aqueduct

The New Cruiser Newark

Official Proclamation of the Great Fair

Progress of the Great Railway Tunnel Under the Hudson River

New Terminus of Pennsylvania Railroad in Jersey City

An Improved Scissors Grinder

A Combined Harrow and Cutter

The Photographic Necktie

A Projectile Rotated by the Explosive

The Worcester Chemical Fire Pail

A Journal Cap for Wood-Working Machines

Photographic Notes- January 3, 1891

Bacillus of Tuberculosis

Horizontal Triple Expansion Engine

Metallo Chromes

By Geo. M. Hopkins

Remarkable Rail-Way Collision in Iowa

Scientific American Building Edition- January 3, 1891

To Inventors- January 3, 1891


  • Letters

    Correspondence- January 3, 1891

  • Departments

    Recently Patented Inventions- January 3, 1891

  • Business and Personal- January 3, 1891

  • Notes and Queries- January 3, 1891

  • Index of Inventions- January 3, 1891

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