Columbia subject headings:
Antiquities, Prehistoric--England, Northern.
England, Northern--Antiquities.
Human ecology--England, Northern.
Human settlements--England, Northern.
Mesolithic period--England, Northern.
Harvard subject headings:
Antiquities, Prehistoric--England, Northern.
England, Northern--Antiquities.
Human ecology--England, Northern.
Human settlements--England, Northern.
Mesolithic period--England, Northern.
Princeton subject headings:
Antiquities, Prehistoric--England, Northern.
England, Northern--Antiquities.
Human ecology--England, Northern.
Human settlements--England, Northern.
Mesolithic period--England, Northern.