Training the Sightless
A Journey in a Zeppelin
Impressions of a Trip in the Airship "Viktoria Luise"
A Copper El Dorado in Mid-Africa--The Katanga
Salving the "Lutine"
The Lotschberg or Bernese Alpine Railway
Modern Engineering for the Benefit of the Tourist
A Problem in Animal Psychology, or in Stage Trickery? By the Berlin Correspondent of the SCIENTIFIC AMERICAN
A Phonographic Alarm Clock, Some Expired Patents and more
The Gasoline and Kerosene Situation
Inventions New and Interesting - May 13, 1913
Recently Patented Inventions - May 13, 1913
Notes and Queries - May 17, 1913