22 Bringver on the Region of the Mississippi, &. 
water ishigh. ‘They are all evidently modern oe whose 
beds sina not long since, part of the forest. 
| Fossil Remains of the Mastodon. 
On the same voyage, I saw, in New-Madrid, a Mam- 
moth grinder, which had just been found by one Francais 
Lesieur. Along with it were several other teeth belonging 
to the same jaw—it was found about three miles below the 
Miles on the banks of the Mississippi, but it was very 
damp and very soft.* This kind of fossil is frequently met 
with on the porphyry ridges bordering, in many places, a 
Sy of the grand valley which is included in the state of 
fissouri 
Between White river and _Swawberry river are three par- 
allel porphyry ranges, running circularly from the west to 
the north east; the three mountains are twenty-eight miles 
across, and seem to a MA above Faecass when the Thole 
country > . 
| ae i ga dulati 
sst which are some ces ae that may be de- 
nominated marbles. — 
At the foot of the before mentioned mountai In, Was an 
elephant or mammoth’s tooth (or grinder) of an enormous 
size; it was fully twice as large as the largest I had seen be- 
fore at Big-Bonelick, A great quantity of these fossils are 
there gathered in a small compass, and this collection was 
a Dubtless occasioned by the appetite which these animals 
had for the salt. Attracted by the water that oozes in these 
marshy place es, they were evidently mired when they ven- 
tured too far in, and of course, the stru gles of the last one 
would sink the aie of rape a still deeper.» Thus 
grinder which I discovered, was perfectly preserved. in its 
Shape, and converted into a siliceous petrification, repre- 
sen’ per, variegated with beautiful colours. 
solid block of porphyry, which the de- 
had worn away to such a degree, 
eig = Sees ie being, if if we cout read it correct- 
iyveleven ta seven be-eérsect ine 
bee valle of Secalin 
AS LE III LET LL ENEY a EST Hat. po 
