THE 
AMERICAN 
JOURNAL OF SCIENCE, &c. 
ee 
idles MINERALOGY, &c. 
aiaig) 
Arr. L—On Volcanoes and volcanic substance 
particular reference to the origin of the rocks of vaya on 
trap formation, by Tuomas Coorrer, M.D. President 
of the College of South-Carolina. 
_ [Read in the American Geological Society, December 3, 1821.] 
Columbia, < C.) Nov. 1, 1821. 
Prorrssor SrpeaMans 24 
Dear Sir,—I send you my Lecture on Volcanoes and 
Fleetz trap, deleecek 3 in my course here, this fall. I think 
the current of opinion in this country is against mine, and 
therefore the sitet will probably give rise as it ought, to 
some discussion. I strongly suspect your sentiments on the 
subject do not at all agree with mine; so much the ree 
the more able my opponents, the sooner will truth be 
cited. I shall draw out a full syllabus of my course of on 
tures on Geological Mineralogy, forming the elements of 
that science for the use of my class, this winter, and shall 
ss ais poles it sere she summer. 
ER, 
resident S. Car. College. 
Vor. HI......No. 2. ee a 
