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Detection of Carbon Monoxide in the Air

The Fallacy of Artificial Food

A Precaution against Water Famine

Carnegie Meridian Astrometry Expedition




The Fourth Vanderbilt Cup Automobile Race

A Mammoth Gyratory Stone Crusher

A Paddle Wheel for Gliding Boats

Was This an Aerolite?

Electric Scrubber for Cleaning Ships' Bottoms without Drydocking

By the English Correspondent of the Scientific American

Metallographs, or Photographs of the Structure of Metal Specimens

By J. F. Springer

Some Commercial Uses of the Glass-Sponges

By L. Lodian

A Painter's Platform Bracket

Screw-Slotting Attachment for Lathes

By H. D. Chapman

A Guide for Drilling Horizontal Holes

Handy Man's Workshop

Old Glue Pot as a Metal Pot and Ladle

By A. V. Searing Jr.

Starting Device for Siphons

Rag Carpet Needle

Substitutes for a Pipe Wrench

By J. A. Bergstrom

A Stereoscope for Single Photographs

By Gustave Michaud

Home-Made Vacuum Cleaner

By W. J. C.


  • Departments


  • Recently Patented Inventions

  • Notes and Queries

  • Index of Inventions

  • New Books, Etc.

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