Scale: circa 1:2,500,000 (lat). Blue-backed chart on two seperate sheets. Each sheet is two sheets joined. 13 insets.
Insets: 1. Passes of the Mississippi, scale: circa 1:150,000 (bar); 2. Galveston, scale: circa 1:350,000 (bar); 3. Mobile Bay, scale: circa 1:350,000 (bar); 4. Port of Vera Cruz, scale: circa 1:90,000 (bar); 5. The Isthmus of Panama & Darien, scale: circa 1:7,000,000 (lat); 6. Cartagena, scale: circa 1:150,000 (bar); 7. Santa Marta, scale: circa 1:90,000 (bar); 8. Key West Harbour Florida, scale: circa 1:150,000 (bar); 9. Santa Ana Harbour Curacao, scale: circa 1:130,000 (bar); 10. Cumana, scale: circa 1:120,000 (bar); 11. Continuation of the Coast of Guayana, scale: circa 1:3,000,000 (lat); 12. Bridgetown Barbados, scale: circa 1:70,000 (bar); 13. Bocas Dragos and Port Spain, scale: circa 1:250,000 (bar).