Two Luminous Circles That Help Airmen to Alight in Safety by Our Berlin Correspondent
The Sikorsky Aeroplanes and How They Are Constructed
What May be Expected of Dirigibles and Aeroplanes
Also includes a two-page spread of anti-aircraft and other weapons
A New Method of Mining the Air and of Thwarting an Attack by Flying Machine or Dirigible
Three editorials. These are the first comments by Scientific American on the outbreak of World War I.