Miscellaneous Notices in Mineralogy, Geology, &c. 227 
We may without impropriety, urge on ail 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 pgp writing in 
Mr. Brongniart’s Elements of Mineralogy, so w own in 
this country, we cannot doubt, that the results of the pres- 
ent research will be communicated to the world ina 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 i in 
Mr. Brongniart’s note, published in the first volume of t 
work. 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. 
acone: notices andl memoranda es 
1. Cursory notice of some parts of North ante Spa’ — 
ina; by Dr. Tororny Dwicnt Porter, one of the 
faculty w the Un. of S. Cares in @ letter to ‘the : Biitor dated 
Conon s. Gat: Oct. 18, kien 
A HAVE recently returned from a hasty ride of about four 
of this state. metas: The limitation of my time was a apie of re- 
° oct tm almost entirely any of my favor- 
gecionmoy ae me "The ntry which below Columbia is 
very t Sait and after, as it were ascending 
one stair ees Blects (which is situated on the falls in the 
ree, and is said to be the — of the primitive 
