218 * Notice “ the Malleable Iron of Louisiana. 
, inning a at the bottom, are as follows: 1. Gray wacke 
Siecavdetsched hillock. Thena sloping massof debris, — 
- Mica slate, (phyllade micacé,) blackish, very hard.—3. 
‘ish gray limestone, full of numerous veins of. calcareous 
spar, alternating with 2. A second mass of debris.—4. 
Mica slate, very fissile and friable, traversed in every direc- 
tion by nodular beds of white calcareous spar, and veins of 
aa Psammite rt very compact, but very 
sile. A third mass of d ebris.—6. Very compact g rayish 
limestone, with veins” of steatite and chlorite, foie in 
some strata a coarse steatitic breccia; also veined with cal- 
ous spar iu te ee —7. Micaceous and 
oes a ee with mica 
; ery delicate and 
chalk formation. It is a very ae compact limestone, 
coarse grained or sub- lamellar. blackish, and when dissoly- 
ed in nitric acid, leaving behind much carbonaceous mat- 
ter, full of dark green grains, insoluble (like the green sand) 
in nitri¢ acid; above, itis a granular, micaceous, whitish 
gray limestone, atiler to chalk tufa. The fossils i in these up- 
ata. , : 
per: 
ed 
lari 
They are a 
Folisone, an 
| bratulas, which are always rare in the inferior chalk 
well 
nites are found i in the — transition stra 
i hed a brief aor 
, ba. 1810 ‘Dr. Bases. pu 
on, from the south western part 
‘shegreatiaiags of Malleable Ir 
mpact greyish limestone, alternating with and less de- 
tible than 2. Towards the upper part, a compact black- 
