Dr. Borré’s Notices of Foreign Geology. 191 
Pappenheim, Eichstadt and in part of Normandy.) It is dis- 
tinguished from the second floetz limestone by its turreied 
orm, &c. The green sand is abundantly distributed in 
Germany, above the Jura limestone, and also in Bohemia 
where it forms the Raiierkalk; it abounds in Westphalia 
near the Hartz; it is some times full of hydrate of iron as 
in Moravia, in some parts of France, on the borders of the 
Hartz, in Pavonia, &c. The chalk is abundant in Polonia, 
above the green sand, with all the preceding members, and 
also here and there in the north of Germany, especially near 
Padesborn in Westphalia. Above the chalk is the plastic 
clay with sand and rolled masses, forming a great part of the 
extensive alluvial tract south of the Baltic; it here and there 
contains shells. Inthe north of Germany you rarely see 
are fresh water deposits of different ages with Planorbis, &c. 
At Pest it is very compact, at Vienna marly, at Baden 
tufaceous. Near Nicolshitz in Moravia it contains insects 
(diptues.) Basaltic deposits are abundant and true volca- 
noes with craters and scorie exist at Egen, at-Hof and in the 
Reisingebirge, ancient sub-marine accmulations of lava and 
tuff are frequent in Germany, and the scorie are often infil- 
trated. The dykes are numerous and have produced an ev- 
ident alteration in the rocks adjacent. Basaltic cones, ele- 
vated as explained by the Huttonians, not by the volcanists, 
or in the form of streams, are met with here and there, es- 
pecially in Hessia, and the red ground and shelly limestone 
are much altered in their vicinity and present the same 
black aspect as at Sky and in Ireland. 
Trachytes are seen in five places in Hungary, on the bor- 
ders of the Rhine, and in Stiria. They may be divided in- 
to five varieties. ‘Trachytes existing in hills. Trachyte 
porphyries (couleés.) Porphyry more or less vitreous (a kind 
of couleés.) Silicious porphyries, probably consolidated by 
water, and having been once pumice-porphyries. Jra- 
chytic and pumaceous tufas (being reaggregated matters 
’ 
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