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Features

The Motive Power of the Philadelphia Cable Railway

Cast Iron Malleable

A New Remedy for the Imported Cabbage Worm

The Chemical Nature of Cotton

By E. Dwight Kendall

Apparatus for Building Concrete Walls

Regenerator for Compound Engines

Improved Miter Box

Improved Printer's Chase

Trace or Hame Tug Buckle

An Improved Safety Engine

Plant Protector

Adjustable Single-Bell Chime Whistle

Recent Progress in Electricity--The Phelps System of Telegraphing from a Railway Train While in Motion

Mechanical Inventions - February 21, 1885

Miscellaneous Inventions - February 21, 1885

Engineering Inventions - February 21, 1885

Agricultural Inventions - February 21, 1885

Departments

  • Letters

    Correspondence - February 21, 1885

  • Recommended

    New Books and Publications - February 21, 1885

  • Departments

    Business and Personal - February 21, 1885

  • Notes and Queries - February 21, 1885

  • Index of Inventions - February 21, 1885

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February 21, 1885

Beyond XX and XY

Biology. Identity. Equality.