Skip to main content


Dr. Le Plongeon's Latest and most Important Discoveries among the Ruined Cities of Yucatan

Dr. Augustus Le Plongeon's Latest and most Remarkable Discoveries in Yucatan

Protests from Manufacturers

American Standard for Boilers

The Cheapness of Cost

Suggestions for Inventors

Improvements in Men and Machines

Improved Torpedo Boat

New Lathe Chuck

Memorandum Book and Pad

Saw Tooth

The Atmospheric Turbine

The Sectional Steamer Le Stanley

Animal Trap

Fire Escape

Miscellaneous Inventions - April 19, 1884

Mechanical Inventions - April 19, 1884

Engineering Inventions - April 19, 1884


  • Letters

    Correspondence - April 19, 1884

  • Recommended

    New Books and Publications - April 19, 1884

  • Departments

    Business and Personal - April 19, 1884

  • Notes and Queries - April 19, 1884

  • Index of Inventions - April 19, 1884

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
April 19, 1884

The Antidote to Anti-Intellectualism