sandstone, gypsum, rocksalt and dolomite. In
Hesse and Thuringia, a quartzitic sandstone prevails in the lower part. The
"Rhizocorallium Dolomite" (_R. Jenense_, probably a sponge) of the latter
district contains the only Bunter fauna of any importance. In Lorraine and
the Eifel and Saar districts there are micaceous clays and sandstones with
plant remains--the _Voltzia_ sandstone. The lower beds in the Black Forest,
Vosges, Odenwald and Lorraine very generally contain strings of dolomite
and carnelian--the so-called "Carneol bank." (2) _Middle
Buntsandstein-Hauptbuntsandstein_ (900 ft.), the bulk [v.04 p.0802] of this
subdivision is made up of weakly-cemented, coarse-grained sandstones,
oblique lamination is very prevalent, and occasional conglomeratic beds
make their appearance. The uppermost bed is usually fine-grained and bears
the footprints of _Cheirotherium_. In the Vosges district, this subdivision
of the Bunter is called the _Gres des Vosges, _or the _Gres principal_,
which comprises: (i.) red micaceous and argillaceous sandstone; (ii.) the
_conglomerat principal_; and (iii.) _Gres bigarre principal_ (=_gres des
Vosges_, properly so-called). (3) _Lower Buntsandstein_, fine-grained
clayey and micaceous sandstones, red-grey, yellow, white and mottled. The
cement of the sandstones is often felspathic; for this reason they yield
useful porcelain clays in the Thuringerwald. Clay galls are common in the
sandstones of some districts, and in the neighbourhood of the Harz an
oolitic calcareous sandstone, _Rogenstein_, occurs. In eastern Hesse, the
lowest beds are crumbly, shaly clays, _Brockelschiefern_.

The following are the subdivisions usually adopted in England:--(1) Upper
Mottled Sandstone, red variegated sandstones, soft and generally free from
pebbles. (2) Bunter Pebble Beds, harder red and brown sandstones with
quartzose pebbles, very abundant in some places. (3) Lower Mottled
Sandstone, very similar to the upper division. The Bunter beds occupy a
large area in the midland counties where they form dry, healthy ground of
moderate elevation (Cannock Chase, Trentham, Sherwood Forest, Sutton
Coldfield, &c.). Southward they may be followed through west Somerset to
the cliffs of Budleigh Salterton in Devon; while northward they pass
through north Staffordshire, Cheshire and Lancashire to the Vale of Eden
and St Bees, reappearing in Elgin and Arran. A deposit of these rocks lies
in the Vale of Clwyd and probably flanks