Columbia subject headings:
Africanists--Germany--Biography.
Africans--Germany--Biography.
Rohlf, Gerhard, 1831-1896--Correspondence.
Schweinfurth, Georg August, 1836-1925--Correspondence.
Tim, Allagabo, 1860-1895.
Harvard subject headings:
Africanists--Germany--Correspondence.
Africans--Germany--Biography.
Rohlfs, Gerhard, 1831-1896--Correspondence.
Schweinfurth, Georg August, 1836-1925--Correspondence.
Slavery--Germany--History--19th century.
Tim, Allagabo, 1860-1895.
Princeton subject headings: