Ancient and modern engineering and the Isthmian canal

The Panama Canal Conflict between Great Britain and the United States of America A Study

San Francisco and the Nicaragua Canal

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

Nicaragua

The Panama Canal

The Panama Canal

The Panama Canal: A history and description of the enterprise

L'isthme de Panama Examen historique et géographique des différentes directions suivant lesquelles on pourrait le percer et des moyens à y employer; suivi d'un aperçu sur l'isthme de Suez.

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

Zone Policeman 88; a close range study of the Panama canal and its workers