A 
JOURNAL 
OF 
NATURAL PHILOSOPHY, CHEMISTRY, 
AND 
V • I 
THE ARTS. 
KOVEMBERy 1813. 
ARTICLE I. 
Introductory Letter to the enming Article upon the Geological 
System of IVerner. 
To Mr. Nicholson. 
B 
SIR, 
I F the oj)pooents of Werner in this country have complained 
of the tone w hich has sometimes been adopted by his dis- 
t ciples, it has," on the other hand, been said, perhaps with 
I equal justice, that the doctrines of a mineralogist of such emi- 
nence have been often canvassed in a manner too much ap- 
proaching to contempt, and not uufrequently censored without 
being understood. In the enclosed paper, which was written 
a considerable time ago, it is hoped that the subject is dispas- 
sionately treated ; and if the writer has failed to comprehend 
the system, it has not been from inattention. 
Besides the general reasons for the correct diffusion of doc- 
trines that have obtained celebrity, there is a further ground on 
which a popular view of the Geology of Werner is at present 
to be desired. The progress of the subject has, of late, been 
very rapid ; and the system must undergo considerable modi- 
Voi. XXXVI.— No. 167. fication 
Conduct of 
tl»e disciples 
of tVerner 
and their op* 
pouents. 
Advanta?es 
of a popular 
view of his 
system. 
