This lovely small chart of the Bay of Biscay features soundings as well as notes indicating the type of sand or the presence of rocks at various points on the ocean floor. A note off the northern coast of Spain states, "The depth of Water on the N. Coast of Spain is from 150 to 200 Fathoms generally Coral and Rocky Ground but even near the Land there is often no Ground at that Depth." There is good detail along the French and Spanish coastlines. A compass rose capped with a fleur-de-lis radiates rhumb lines at the map's center. This chart was engraved by Rollinson for Rev. John Malham (1747-1821), a writer and teacher of navigation, for the first American edition of Malham's The Naval Gazetteer; or, Seaman's Complete Guide.

References: McCorkle (18th C. Geography Books) #253 Vol. I-8.

Condition: B+

Minor soiling with a tiny repaired hole in an unengraved area at top right.