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One of the Dangers of Flight in a Wind, Secrecy in Modern Industries and more

Wilhelm Ostwald

A Leader in Modern Philosophy of Science

The Voisin "Canard" Biplane

How Gabriel Voisin Invented His Biplane Christened the "Duck"

A Painting in Glass on a Canvas of Concrete

Mosaic Curtain of the Mexican National Theater

American Merchant Marine

An Expert Analysis of an Important Economic Problem

By Francis T. Bowles

Science in the Current Periodicals - April 29, 1911

In this Department the Reader will find Brief Abstracts of Interesting Articles Appearing in Contemporary Periodicals at Home and Abroad

Curiosities of Science and Invention - April 29, 1911

Experiments on Light

By Sydney W. Ashe

Copper Connections for Battery Carbons

By A. J. Jarman

The Inventor's Department - April 29, 1911

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

The Light of the Glow-worm

Plants that Like Cold, Strange Ocean Chasms and more

Departments

  • Letters

    Correspondence - April 29, 1911

  • Recommended

    New Books, Etc. - April 29, 1911

  • Departments

    The Heavens in May 1911

  • Recently Patented Inventions - April 29, 1911

  • Notes and Queries - April 29, 1911

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The Essential Guide to the Modern World

The Essential Guide to the Modern World