Columbia subject headings:
Harvard subject headings:
Communication in science--History--17th century--Congresses.
Galilei, Galileo, 1564-1642--Congresses.
Science--Europe--History--17th century--Congresses.
Princeton subject headings:
Communication in science--History--17th century.
Galilei, Galileo, 1564-1642.
Science--Europe--History--17th century.