Miscellaneous jyotices in Mineralogy, Geology, &/-c. 227 



We may without impropriety, urge on all the friends of 

 geology, the importance of aiding Mr. Brongniart in his 

 great enterprize. No man is better qualified to conduct it 

 to a successful issue, and after the specimen which we al- 

 ready have, of manly, perspicuous and interesting writing in 

 Mr. Brongniart's Elements of Mineralogy, so well known in 

 this country, we cannot doubt, that the results of the pres- 

 ent research will be communicated to the world in a form 

 equally alluring and useful. 



We take the liberty therefore to invite our friends and the 

 friends of science, especially beyond the mountains, and 

 more especially in the vicinity of the various coal and other 

 secondary formations, to collect and forward such speci- 

 mens as are alluded to above, and such as are described in 

 Mr. Brongniart's note, published in the first volume of this 

 worki His address is Paris, Rue St. Dominique, No. 71, 

 but we will, when desired, cheerfully act as the medium of 

 communication, still giving due credit to the individuals who 

 may make efforts on this occasion, so interesting to science, 

 and which may be so honourable to the American character. 



Art. hi. — Miscellaneous notices and memoranda of facts, 

 relating to Jimerican Mineralogy, and Geology, Locali- 

 ties of Minerals, &fc. ^c. 



1. Cursory notice of some parts of North and South Caro- 

 lina ; by Dr. Timothy Dwight Porter, one of the 

 faculty of the Un. of S. Car. in a letter to the Editor, dated 



Columbia, S. Car. Oct. 18, 1820. 



Dear Sir, 



I HAVE recently returned from a hasty ride of about four 

 hundred miles, into, and through the Northwestern portions 

 of this state. The limitation of my time was a matter of re- 

 gret to me, as it prevented almost entirely any of my favor- 

 ite researches. The country which below Columbia is 

 very nearly a perfect level, and after, as it were ascending 

 one stair at this place, (which is situated on the falls in the 

 Congaree. and is said to be the boundary of the primitive 



