The SciencesApril 1, 1926
The Six-Mile Moffat Tunnel
By Means of Special Equipment the Main and Auxiliary Tunnels Are Being Driven Side by Side Through the Rockies
Stories by George F. Paul
The SciencesNovember 1, 1925
Linking Mexico and California
Unbroken Rail Journey from San Francisco to Mexico City, Will Soon Be Possible
The SciencesMarch 19, 1921
Outwitting the French Customs
TechnologyJuly 17, 1920
Fighting Waves with Compressed Air
An Artificial Reef of Air That Breaks Up the Rollers and Makes Them Harmless
The SciencesApril 3, 1920
The Wrecking Derrick and a Concrete Job, Our Instincts have Birthdays, and more
The SciencesSeptember 9, 1916
Armored Car Planned and Built in Four Weeks, The Current Supplement, and more
An armored train car built for use in the regions of the border with Mexico.