M. Beudant on the Mmeralogical School of Freyherg, , 
upon relations entirely geological, upon the circumstance that 
the pitchstones evidently form a part of the red sandstone forma- 
tion, and are also found in connection with arenaceous deposits. 
These are conglomerates, having an argillaceous basis, and 
whose rolled pebbles are of gneiss ; fine-grained quartzose sand- 
stones, carbonaceous sandstones, and schistose clays. Now, 
these substances have evidently been deposited from water, and as 
the pitchstones occur imbedded in them in nodules or small beds, 
and since they contain the same fragments of gneiss, as is seen 
at Mohorn, it becomes impossible to admit, with regard to them, 
any other origin than that which must necessarily be attributed 
to the arenaceous rocks. 
Thus, without anticipating the probable conclusion which 
may result one day from new facts furnished by observation, it 
is plain, that in the present state of our knowledge, the probabi- 
lity is in favour of the neptunian hypothesis. It is, therefore, 
this which I shall adopt for the present, always pointing out 
these formations to geologists, who may have an opportunity of 
studying them, as meriting the most scrupulous attention. 
The Mineralogkal School Freyherg» 
Freyherg. — We could no longer expect a series of good wea- 
ther, at the season when we returned, and when Saxony is com- 
monly covered with snow ; bad weather also came on, and I 
could pot put in execution other intended excursions, which I 
had meditated with regard to certain points of geology, which 
still interested me about Freyberg ; even the last excursions 
which I made presented many difficulties.. I could, therefore, 
no longer interrogate Nature herself ; but I found at the school 
of Freyberg, with the professors and officers of the mines, col- 
lections made with great care, and which presented a number of 
very interesting facts. The genius of Werner still hovers 
around, and mineralogists and geologists, on entering upon 
the classical ground, still feel in theniselves an increase of that 
zeal, that love of science, that philosophical spirit, which for 
thirty years the illustrious professor diffused over all Europe. 
The collections of the Academy of Mines presented to me a 
; multitude of very interesting facts, in a geological point of view,- 
and which furnished me with a great number of comparisons be- 
