Bringier on the Region of the Mississippi, &e. 15 
> 
The stratum of earthy lignite being but a bad filter, the pyrites be- 
come very scarce beneath, and soon (at two to two and an half 
feet below it) disappears altogether. ae owe 
Arr. IV.—Notices of the Geology, Mineralogy, Topogra- 
phy, Productions, and Aboriginal inhabitants of the re- 
gions around the Mississippi and its confluent waters—in 
a letter from L. Brineier, Esq. of Louisiana, to Rev. 
Elias Cornelius—communicated for this Journal. 
ys gp Mescrite 
oe Rees eae see 
Through the medium of this Journal,vol. £. pp. 214 and 317, 
the public have been already favoured with the observations 
of the Rev. Mr. Cornelius, on some portions of the souther: 
and south western States. At the request of the Editor, 
facts and. statements, derived from other sources, were ob- 
tained by Mr. Cornelius; and relating principally to parts 
of the country on the Mississippi, which that gentleman had 
not the opportunity of seeing. This was the origin of Mr, 
‘ingier’s memoir, which pecu aliar circumstances have pre- 
vented our publishing tillnow. Fe A 
Although somewhat immethodical, it abounds so much 
with interesting statements, that we have thought it better to 
publish it, with some alterations and omissions, (agreeably 
to the author’s permission communicated with the paper,) 
rather than to attempt a new digest of the subjects: for Mr. 
ringier appears to have contemplated little more than the 
communication of materials, to be wrought into a different 
form.—Eprror. - 
County of Accadia, 20th March, 18: 
_. MR. ELIAS CORNELIUS, ._ 
Gner sincerely, that yours of the 28th ultimo, on ac- 
count of my being absent when it arrived, has reached me 
only this day: this delay has nearly absorbed (if not alto- 
