Columbia subject headings:
Harvard subject headings:
Haller, Albrecht von, 1708-1777--Correspondence.
Medical sciences
Medical scientists--Correspondence.
Natural history
Naturalists--Correspondence.
Trew, Christoph Jacob, 1695-1769--Correspondence.
Princeton subject headings:
Haller, Albrecht von, 1708-1777--Correspondence.
Medical sciences.
Medical scientists--Correspondence.
Natural history.
Naturalists--Correspondence.
Trew, Christoph Jacob, 1695-1769--Correspondence.