Columbia subject headings:
Harvard subject headings:
Anglo-Spanish War, 1779-1783--Public opinion.
Viera y Clavijo, José de, 1731-1813--Correspondence.
Viera y Clavijo, José de, 1731-1813--Political and social views.
Voltaire, 1694-1778
Princeton subject headings:
Botanists--Canary Islands--Correspondence.
Viera y Clavijo, José de, 1731-1799--Correspondence.