DR BOUE' on the geognosy OF GERMANY. 97 
the Sultmerberg is composed of a ver}^ distinct Jura Lime- 
tone ; the Clunch-clay is very abundant in Westphalia, 
and in the same part of Germany are found many beds of 
Marls and Limestones which belong to the J ura. Lastly, 
the Planerkalk of the north of Bavaria and Swabia, and of 
many parts of Germany, is nothing else than certain beds 
of the Jura Limestone, which extend distinctly from Swit- 
zerland, through Swabia and Bavaria, as far as Staffelstein 
and the neighbourhood of Cobourg. 
The Quadersandstein of the Germans, to which some 
authors assign a place above the Jura Limestone, I still 
think occurs under it, and therefore immediately above the 
Variegated Sandstone. 
The Green-sand, the Planerkalk of Werner, abounds 
in the northern parts of France ; it is found in Westphalia 
(from Unna as far as Soist, on the borders of the Hartz, 
near Goslar and Ilsenberg), near Dresden *, in Poland, 
and nearly all the Planerkalk of the basin of Bohemia be- 
longs to the same formation. It never contains belemnites, 
seldom terebratulites, and here and there a kind of massive 
hornstone. In Moravia, France, and Bavaria, it contains 
a deposit of hydrate of iron. This deposit is everywhere 
identical with that of England ; and near the Hartz, lies 
upon the Quadersandstein, and under the Coarse Chalk. 
The chalk so profusely distributed in England and 
France, is also pretty frequent in the north and middle of 
Germany, especially the inferior part or coarse chalk, 
which has there been often called Planerkalk: It occupies 
a great part of a sort of vast sinuosity, stretching from 
• The Green-sand of Dresden and the neighbourhood of Meissen contains 
three or four species of Terebratulites, without striae, one or two with stria?, 
echinites, pectinites, bivalves, and teeth of a squalus. 
VOL IV. G 
