Ancient and modern engineering and the Isthmian canal

"The United Seas"

A Succinct View of the Importance and Practicability of Forming a Ship Canal across the Isthmus of Panama

Is a Ship Canal Practicable? Notes, Historical and Statistical, Upon the Projected Routes for an Interoceanic Ship Canal Between the Atlantic and Pacific Oceans, in Which is Included a Short Account of the Character and Influence of the Canal of Suez, and the Probable Effects Upon the Commerce of the World of the Two Canals, Regarded Either as Rivals, or as Parts of One System of Interoceanic Navigation

Nicaragua

San Francisco and the Nicaragua Canal

The American Type of Isthmian Canal Speech by Hon. John Fairfield Dryden in the Senate of the United States, June 14, 1906