Columbia subject headings:
Harvard subject headings:
Ala Ponzone, Fabio, 1770-1817--Correspondence.
America--Description and travel--Sources.
America--Discovery and exploration--Spanish--Sources.
Explorers--America--Correspondence.
Explorers--Italy--Correspondence.
Explorers--Spain--Correspondence.
Malaspina, Alessandro, 1754-1809--Correspondence.
Malaspina, Alessandro, 1754-1809--Journeys--Sources.
Natural history--America--Sources.
Scientific expeditions--America--History--18th century--Sources.
Princeton subject headings:
Ala Ponzone, Fabio, 1770-1817--Correspondence.
Malaspina, Alessandro, 1754-1809--Correspondence.
Scientific expeditions--History--Sources.