A chart of the Bay of Biscay compiled from the latest French and Spanish surveys. Drawn by J.S. Hobbs F.R.G.S, Hydrographer

Scale: circa 1:750,000 (Lat). Blue-backed chart with twelve insets, four views and two enlarged plans. Enlarged plans, W. Coast of France: 1. Brest &c. circa 1:400,000 (bar); 2. The sables d'olonne to the river Gironde circa 1:250,000 (bar) Insets: 1. Ferrol circa 1:70,000 (bar); 2. Bilbao circa 1:45,000 (bar); 3. Barquero circa 1:60,000 (bar); 4. Ribadero circa 1:45,000 (bar); 5. Cedeira circa 1:60,000 (bar); 6. Vivero circa 1:60,000 (bar); 7. Port of Santander circa 1:50,000 (bar); 8. Harbour of Santona circa 1:75,000 (bar); 9. Harbour of S. Sebastian circa 1:13,000 (bar); 10. Bar of Bayonne circa 1:22,500 (bar); 11. Port Passage circa 1:35,000 (bar); 12. Mouth of the Loire circa 1:175,000 (bar)