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“Made in Germany”, Physical Tests for Aviators, and more

Self-dumping and Automatic Baling Scow

A New Type for Refuse Disposal and Harbor Construction

The Strength of an Aeroplane

A Family Hydroplane

Curiosities of Science and Invention

Abstracts from Current Periodicals- December 16, 1911

Phases of Science as Other Editors See Them

Novel Transportation Bridge in Great Britain

A Suspended Ferry

By F. C. Coleman

The Most Powerful European Express Engine

An Important French Locomotive Development

Some Locomotive Curiosities

Showing How Present Practice Was Reached by Trial and Error

By Herbert T. Walker

Preparation of Small Quantities of Impure Radium Bromide

By James H. Doran

The Laboratory

Some Suggestions for Home Experiment

By A. J. Jarman

A Simple Micrometer

By Claude C. Kiplinger

The Inventor's Department- December 16, 1911

Simple Patent Law; Patent Office News; Inventions New and Interesting


  • Recommended

    New Books, Etc.- December 16, 1911

  • Departments

    Notes for Inventors- December 16, 1911

  • Notes and Queries- December 16, 1911

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