Columbia subject headings:
Harvard subject headings:
Drugs--Law and legislation--Germany--Rhine Province--History.
Pharmaceutical industry--Germany--Rhine Province--History--18th century.
Pharmaceutical industry--Germany--Rhine Province--History--19th century.
Pharmaceutical industry--Technological innovations--Germany--Rhine Province--History--18th century.
Pharmaceutical industry--Technological innovations--Germany--Rhine Province--History--19th century.
Pharmacy--Germany--Rhine Province--History--18th century.
Pharmacy--Germany--Rhine Province--History--19th century.
Pharmacy--Law and legislation--Germany--Rhine Province--History.
Princeton subject headings:
Drugs--Law and legislation--Germany--Rhine Province--History.
Pharmaceutical industry--Germany--Rhine Province--History--18th century.
Pharmaceutical industry--Germany--Rhine Province--History--19th century.
Pharmaceutical industry--Technological innovations--Germany--Rhine Province--History--18th century.
Pharmaceutical industry--Technological innovations--Germany--Rhine Province--History--19th century.
Pharmacy--Germany--Rhine Province--History--18th century.
Pharmacy--Germany--Rhine Province--History--19th century.
Pharmacy--Law and legislation--Germany--Rhine Province--History.