92 Dll BOUE' on the geognosy of GEllMANY. 
compare it with the description in his hand. This had also 
been my idea ; and, indeed, I have to say, that almost all 
that I have seen is recorded in the annals of science, or is 
now known to the German geologists. But I found that 
all had not been described with sufficient accuracy, nor ex- 
amined from every possible point of view ; and, particular- 
ly, that the various deposits had not in all cases been pro- 
perly classified, from ignorance of the true structure of 
other countries. So that, if I was not a little surprised to 
find new facts, or neglected appearances, in localities very 
often visited by geologists, I was, on the other hand, able 
to replace some deposits in their true geognostical places ; 
and from this kind of review, I learned more than I could 
have done in travelling over an unknown country. 
An ample detail of the numerous interesting points visit- 
ed during this long journey shall be sent at another time, 
my object at present being only to lay before you the prin- 
cipal results of my observations in open field, and in public 
and private collections, and of a friendly intercourse with 
many eminent men. 
As I have seen in this journey all the principal forma- 
tions of which the crust of the Earth seems to be composed, 
I shall communicate my ideas on the series of Formations, 
dwelling particularly upon those which present the most 
obscurity or interest, and speaking first of the stratified 
rocks, and afterwards of the umtratified ones. 
I. Stratified Rocks, 
1. Primitive Rocks. 
The Primitive class seems to contain only tv/o kinds or 
stratified formations, Gneiss and Mica- slate, of which, 
even the first predominates in a great degree over the 
pther^ (Erzgebirge, BohmerwaldgebirgCj primitive chain 
