History of the Panama Canal.

American Antigua army Atlantic Balboa blasting boilers building built cable Canal Zone carried cars cent Chicago chief engineer coal coast Colombia Colon Colonel Goethals commerce Company completion concrete connection construction contract cost cubic yards Culebra Cut dredges drills dumping electric equipment excavation feet firm fleet force French furnished gates Gatun Gatun Dam Gatun Lake governor Grape-Nuts handling holes inches Island Isthmian Canal Commission isthmus labor lock canal locks locomotives machinery machines manufactured material ment miles Miraflores mixer motors Natá navy Nicaragua Nombre de Dios ocean operation Pacific Panama Canal Panama Railroad pany Pedrarias Pedro Miguel plant port Porto Bello pounds President pumps rail result rock rope route sailed San Francisco sealing devices sent ships side South Spain steam shovels steel supplied tion tons trade train treaty tropical United valves vessels wire yellow fever York City