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Langley--A Tribute

Some Theories Verified

Wanted: A Sanitary Railway Car




The Eyes of Plants

A New Ice-Making Machine for Domestic Use

A Rescue Training School and Experimental Gallery for Miners

New Fossil Wonders from the Fayum of Egypt

By Walter L. Beasley

Polishing the Great Cullinan Diamond

Handy Man's Workshop

A Simple Foot-Power Compound Grinder

By A. E. Osborn

A Simple Method for Making a Coiled Spring

By A. Fagan

A Blacksmith's Napkin Ring

An Unbreakable Leyden Jar

A Home-Made Wimshurst Machine

By John R. Allen


  • Departments


  • Recently Patented Inventions

  • Notes and Queries

  • Index of Inventions

  • New Books, Etc.

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