Columbia subject headings:
Harvard subject headings:
Hotels--Germany--Lower Saxony--History--19th century.
Lower Saxony (Germany)--Buildings, structures, etc.--History--19th century.
May, Karl, 1842-1912--Friends and associates.
May, Karl, 1842-1912--Travel--Germany--Lower Saxony.
Taverns (Inns)--Germany--Lower Saxony--History--19th century.
Princeton subject headings:
Hotels--Germany--Lower Saxony--History--19th century.
Lower Saxony (Germany)--Buildings, structures, etc.--History--19th century.
May, Karl, 1842-1912--Friends and associates--19th century.
May, Karl, 1842-1912--Travel--Germany--Lower Saxony--19th century.
Taverns (Inns)--Germany--Lower Saxony--History--19th century.