Chart of the South Polar Sea.
[London] : Hydro. Office of the Admiralty,
1839.
Ad. chart no. index.
Challenger route plot probably by John George Bartholomew ; Information from J.C. Bartholomew.
Shows routes of principal explorations to 1839.
The route of the Challenger expedition, 1873-75, has been added in blue and magenta ink showing its day-to-day progress.