FORMATION OF NORTHERN GERMANY. 141 
Asse, and Berklingen near Wolfenbuttel; where conglomerate 
rests upon the middle lias. It is tolerably compact, yellowish 
brown, small-grained, with a large proportion of a calcareous 
cement and numerous fragments of shells. In the stone quarry 
above the windmill at the first-mentioned place, six seams of this 
rock, 3 feet in thickness, were apparent, which were separated 
by thin layers of a softer marl. 
The Hils-conglomerate occurs, with perfectly similar charac- 
ters, only more stratified, on a hill to the north of Schandelahe 
near Brunswick ; and without doubt also at Schéppenstedt on 
the Rothenberg. 
There has also been recently exposed at Osterwalde by the 
“new light” shaft No. 1, above the Weald-clay, a ferruginous 
gray mass of sandstone 18 fathoms in thickness, which is some- 
times fine-grained, sometimes in the state of a conglomerate, and 
which has been proved to belong either to the Hils-clay or the 
Hiis-conglomerate by the presence of 
Avicula macroptera. Turbo clathratus. 
Exogyra sinuata. Belemnites subquadratus. 
Modiola rugosa. Ammonites Nutfieldiensis. 
Terebratula varians, var. Glyphea ornata. 
Thracia Phillipsii. 
This same deposit likewise occurs in the neighbouring Stein- 
bach. It is succeeded, according to a communication of the mi- 
ning officer M. Hartleben, by a sand, which above is fine-grained, 
below coarse-grained (1° 6!) (1 ft. 6in.?) ; then slate-clay (1° 6’) ; 
blue marl (1°) ; limestone, called ‘blue stone’ (4'); then clay- 
slate (2°), with Cyrena media, Sow.,—therefore clearly belonging 
to the Weald-clay. 
The number of fossils with which we have become acquainted 
from the Hils-conglomerate is already very considerable and 
will certainly still be augmented; the following species appear 
to belong exclusively to it, in Germany, where they are found 
at various places :— 
Scyphia furcata. Cidarites vesiculosa. 
...  tetragona. Cyphosoma rugosum. 
--.  foraminosa. Galerites subuculus. 
Manon peziza. Crania hexagona. 
Chrysaora pustulosa. Terebratula latissima. 
Palmipora polymorpha. eee nuciformis. 
