Columbia subject headings:
England--Antiquities--Congresses.
Flint--England--Congresses.
Prehistoric peoples--England--Tools--Congresses.
Stone implements--England--Congresses.
Harvard subject headings:
England--Antiquities--Congresses.
Flint--England--Congresses.
Prehistoric peoples--England--Tools--Congresses.
Stone implements--England--Congresses.
Princeton subject headings:
England--Antiquities--Congresses.
Flint--England--Congresses.
Prehistoric peoples--England--Tools--Congresses.
Stone implements--England--Congresses.