106 BOUE' ON THE GEOGNOSY OF GEEMANY. 
Basaltic veins are very frequent in Germany, and are 
found in almost all the formations of that country, with 
all the accidents, as in Scotland. The Quadersand stein of 
the north of Bohemia, and the Shell Limestone (Muschel- 
kalkstein) of the western part of Germany, present beauti- 
ful examples of these appearances. 
The second less numerous class of igneous rocks which 
appear to have flown in the open air, occur not only in hills 
with craters, and with scoriae, but also in currents. In the 
south of Germany, in Hungary, and Transylvania, this class 
is exceedingly well exemplified ; for there the trachytes form 
great and high districts, more or less surrounded by or asso- 
ciated with basalts ; for example, near Feldbach, in Styria. 
In Hungary and Transylvania, they are accompanied also 
with vitreous rocks, pumice, and great masses of re-agglu- 
tinated trachytic, or pumice-rocks, which show, by some- 
times containing shells of the Parisian formation, the recent 
age of these deposits. Such is particularly the nature of 
these formations in Hungary, where they rest at Chemnitz 
and Cremnitz upon the transition metalliferous porphyries, 
and form, as it were, four or five great islands in the middle 
of that immense basin. 
In the other parts of Germany there exist no trachytes, but 
only basaltic lavas, with scoriae and craters, or indications 
of them. Thus there is a very beautiful crater near the 
Pferde Kopf, in the Rhongebirge; distinct lava-streams 
are observed in the Vogelsgebirge ; at Eger, there are 
true volcanic scoriae, and indications of a crater; near 
Hof, upon the borders of Moravia and Silesia, the Rauden- 
berg is a great heap of red scoriae, like the Puy de Grave- 
neire, in Auvergne, or in Vivarais ; and there is a portioa 
of a crater and small streams of basaltic lava ; lastly, even in 
the Riesengebirge, there is a crater and streams of lava. 
