- "The Mississippi River Problem" by Walter Sheldon Tower in Popular Science Monthly, 73 (July 1908)
- "Abandoned Canals of the State of New York" by Ely Van de Warker in Popular Science Monthly, 75 (September 1909)
- "Interoceanic Canal Routes" by Charles de Fourcy in Popular Science Monthly, 16 (January 1880)
- "The Panama Route for a Ship Canal I" by William Hubert Burr in Popular Science Monthly, 61 (July 1902)
- "The Panama Route for a Ship Canal II" by William Hubert Burr in Popular Science Monthly, 61 (August 1902)
- "The Type of the Panama Canal" by Carl Ewald Grunsky in Popular Science Monthly, 74 (May 1909)