The Rotary Mimeograph Case, What Martians Look Like and more

The Motor Liner "Selandia"

The First Large Passenger Ship to Be Equipped With Oil Engines

Amundsen's Attainment of the South Pole

Progress of Antarctic Exploration

Curbing the Wireless Meddlér

Regulation of Radiotelegraphy

Morning and Evening Stars for 1912

Positions of the Sun and Planets for the Coming Year

St. Petersburg's Water Sterilizing Plant

Suppressing Typhus and Cholera Epidemics With Ozone

Thawing a Six-inch Water Main

How a Brine-covered Pipe-line Was Freed of Ice by Electricity

Suggestions for the Workshop

Ingenious Expedients of Resourceful Mechanics

Converting a Planer into a Milling Machine

Making Small Grinding Wheels

Curiosities of Science and Invention - March 23, 1912

Moving Pictures at Home, The Acetylene Fog Horn and more

By the English Correspondent of the Scientific American

What Inventors are Doing - March 23, 1912

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