Columbia subject headings:
Harvard subject headings:
Agricultural innovations--Germany--Saxony--History--18th century--Congresses.
Agricultural innovations--Germany--Saxony--History--19th century--Congresses.
Merino sheep--Breeding--Germany--Saxony--History--18th century--Congresses.
Merino sheep--Breeding--Germany--Saxony--History--19th century--Congresses.
Merino sheep--Germany--Saxony--History--18th century--Congresses.
Merino sheep--Germany--Saxony--History--19th century--Congresses.
Sheep farming--Germany--Saxony--History--18th century--Congresses.
Sheep farming--Germany--Saxony--History--19th century--Congresses.
Sheep industry--Germany--Saxony--History--18th century--Congresses.
Sheep industry--Germany--Saxony--History--19th century--Congresses.
Princeton subject headings:
Agriculture--Economic aspects--Germany--Saxony--History.
Sheep--Breeding--Germany--Saxony--History.