Skip to main content

Features

Inconclusive Tests of the Scout Cruisers

Suburban Traffic in London and New York

Longer Daylight

Science

Engineering

Electricity

A New Electric Traveling Scale Crane

By Walter Bailey

An English Electrically Operated Evaporative Condenser Plant

By Frank C. Perkins

A Billiard Table for Ships

By Harold J. Shepstone

Second Honorable Mention Essay on the Fourth Dimension

By F. C. Ferry

Signaling to Mars

A New Scotch Elevating Ferry

By William Carlin

The Proposed Montreal Drydock

The Number of our Ancestors

Constructing the Concrete Locks of the Panama Canal

By H. Prime Kieffer

Foods and Digestion

Handy Man's Workshop

Iceless Refrigeration

By Edward Thorpe

A Weatherboard Gage

By I. G. Bayley

A Home-Made Saw Vise

By James G. Newland

Quick Means for Finding the Center of Shafts

By Albert Prather

Departments

  • Departments

    Correspondence - July 17, 1909

  • Recently Patented Inventions - July 17, 1909

  • New Books, Etc. - July 17, 1909

  • Notes and Queries - July 17, 1909

Purchase To Read More

Already purchased this issue? Sign In to Access
Select Format
July 17, 1909

Think Outside the Gift Box