dwellings in France still inhabited, or occupied till comparatively
recent times, they are so numerous and are to be found in every
department where is the chalk or the limestone, sandstone or volcanic
tufa.

They are to be met with not only in those parts of France from which
the above specimens have been taken and described, but also in Var,
Bouches du Rhone, Aveyron, Gard, Lozere, Cantal, Charente, Vienne, &c.

There is a good deal of sameness in the appearance of those still
inhabited--a walled face, a mask, with window and door, and above a
chimney of brick rising out of the rock.

[Illustration: Plan of the Rock Holes in Nottingham Park. Total length
of excavation on South Front 110 yards.]

In England, Nottingham drew its ancient British name of Tigguocobauc
(House of Caves) from its troglodyte habitations; at Mansfield in that
county such caves exist, and were associated with a class of
inhabitants somewhat nomadic, who obtained their living by making
besoms from the heather of the adjoining forest and moorland. They
established a colony on the roadside waste, and sank wells in the rock
for water. Nottingham enjoyed possibly the largest brewing and malting
business in the country, and those trades were nearly wholly carried on
in chambers and cellars and kilns cut out of the living rock. Mr. W.
Stevenson, author of "Bygone Nottinghamshire," writes to me: "Last week
I was with an antiquarian friend exploring an ancient passage in the
castle rock, originally made as a sally-port to the castle, but at some
later period when bricks came on the scene, converted or enlarged into
a set of malt offices with malt kilns complete. Their original use and