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boniferous series, where it passes into the base of the new red sand- 
stone. 
Lastly, The authors describe a hasty traverse, made from the 
Thuringerwald through the forest of Upper Franconia, and thence 
to the north flank of the Fichtelgebirge. On the northern limits of 
the section (the strike and many accidents of position remaining as 
before) were rocks with a true slaty cleavage, which might (at least 
mineralogically ) be compared with the upper slates of the Ardennes ; 
and further south, the analogy was confirmed by bands of limestone, 
with stems of Encrinites, but with very few other fossils. Still further 
south occur a few impressions of plants, and the whole system ap- 
pears to be at length overlaid by a series of limestones and schists, 
some of which are very rich in fossils. One of these zones of lime- 
stone (the lowest according to Count Munster) rests on calcareous 
slates, containing a cardiola of the upper Ludlow rock. It is in this 
zone that the Clymenia is most abundant. Goniatites, Orthocera- 
tites, &c., are abundant in a higher zone; and the series is overlaid 
by a limestone with many species of true carboniferous producte, 
&c., and identified with the mountain limestone. From these facts 
the authors conclude, that the fossiliferous region near Hoff (south 
of the Fichtelgebirge) belongs to the Devonian system, with the 
exception of the highest beds, which are carboniferous. 
Such are the results arrived at by the authors, which seem to 
be in general accordance with one another, and to bear out the clas- 
sification they proposed for the older British formations. 
