ginous springs,
discovered in 766, and since 1779 largely frequented in summer. In the
vicinity are the ruins of Iburg, a castle destroyed by Charlemagne in
775, and bestowed by him upon the bishopric of Paderborn.

DRIFFIELD (officially Great Driffield), a market town in the Buckrose
parliamentary division of the East Riding of Yorkshire, England, 19-1/2
m. N. by W. from Hull, the junction of several branch lines of the North
Eastern railway. Pop. of urban district (1901) 5766. It is pleasantly
situated at the foot of the Wolds, and is connected with Hull by a
navigable canal. The church of All Saints is of various dates from
Norman onwards. The town is the centre of a rich agricultural district,
and large markets and fairs are held. There are works for the
manufacture of oil-cake. Driffield is of high antiquity, and numerous
tumuli are seen in the vicinity, while there is an excellent private
antiquarian museum in the town.

DRIFT (from "drive"), a verb or noun used in various connexions with the
sense of propelled motion, especially (but not necessarily) of an
aimless sort, undirected. Thus it is possible to speak of a snow-drift,
an accumulation driven by the wind; of a ship drifting out of its
course; of the drift of a speech, i.e. its general tendency. The word is
also used in some technical senses, more immediately resulting from the
action of driving something in. But the most important technical use of
the word is in geology, as introduced by C. Lyell in 1840 in place of
"Diluvium." The earlier geologists had been in the habit of dividing the
Quaternary deposits into an older Diluvium and a younger Alluvium; the
latter is still employed in England, but the former has dropped out of
use, though it is still retained by some continental writers. The
Alluvium was distinguished from Diluvium by the fact that its mammalian
fossils were representatives of still living forms, but it is a matter
of great difficulty to separate these two divisions in practice. "The
term drift is now applied generally to the Quaternary deposits, which
consist for the most part of gravel, sand, loam or brickearth and clay;
it naturally refers to strata laid down at some distance from the rocks
to whose destruction they are largely due; but, although applied to
river deposits, the word drift is more appropriately used in reference
to the accumulations of the Glacial period.

"The occurrence of stones and boulders far removed f