Columbia subject headings:
Harvard subject headings:
Geologists--Bohemian Forest--Correspondence.
Geology--Bohemian Forest--History--Sources.
Hochstetter, Ferdinand von, 1829-1884--Correspondence.
Scientists--Bohemian Forest--Correspondence.
Wood-engraving--Printing
Princeton subject headings:
Geologists--Bohemian Forest--Correspondence.
Geology--Bohemian Forest.
Hochstetter, Ferdinand von, 1829-1884--Correspondence.
Scientists--Bohemian Forest--Correspondence.