Columbia subject headings:
Harvard subject headings:
Aldrovandi, Ulisse, 1522-1605?
Aldrovandi, Ulisse, 1522-1605? De observatione foetus in ovis.
Birds--Embryology.
Science--Italy--History
Princeton subject headings:
Aldrovandi, Ulisse, 1522-1605? De observatione foetus in ovis.
Birds--Embryology.
Embryology--Early works to 1800.
Embryology--History.