236 GEOLOGICAL SURVEY 
per cent. 
Fro om Beels Mernyesee se 2 ace = re ae ee ee == == 50 
(Vitono ia oa ae are ee es rin Us 
«  Greer’s Landing, (near Middleton Place,)------------------ 52 
GSPN Pe Sessa erent es os eo ete em 75 
u Cattell's Bluff, Clement’s land. grenish tint,.._-.--.-------- 52 
*  Anather part of Clement’s land, “white, I ne 78 
cc Oohensiland,s a2 sae seec eer sae ose Se ee eee ees Sie 62 
« John A. Ramsay’s,..-------=-----------=-+-=----------- 67 
WCedar Grove, LM: Dwichtig== @25 222 - Senet ene eee 76 
Oak: Morestiee 822 ee See ae See eee See eee ee eo 
«“ Wassamasaw swamp, (head source of Ashley,)--------------- 72 
“ Indian Fields, No. 1, (light brown,)- .--------------------- 47 
a do. COR SENSE Bate, FANE aMSN CINCY. 2 ane ato ee etaetaO.) 
“ 45 feet beneath the water in outer part of Charleston Harbor, near 
Fort Sumter, after removing all the recent shells adhering, or 
enclosed by recent boring shell-fish,. -.-------.------------ 81% 
The following are specimens obtained in boring (in 1824) in the city of 
Charleston, from the different depths stated, 
Hina the depth of 120 feet below the surface, per cent..---.------- 65 
do. Sy Rn eee a a Ie eee re ere ee 
& do. AGES TS ER ee TEL ORE TEE SE eee OO 
sc do. VGQ4 iets Bele. pees SI eee ee ea 
“ do. AS Ce a a a ek ee Be Ses Se OSL 
“ do. DY NTU pe ees er SE ES Se eee os 
« do. Son ee VAS OU Lens Fr tee Os 
2 do. QO eaten SPEER E TSE RSS SEE ee oS Sass eae OOF 
us do. DOS ( ea St ss NE Oe A ee ene ee res 55 
ue do. DS aaa re ER ey IE ae ee, Stes OO 
“ do. SON oe ee eee Ree a ee ne cee ne aoe NOG 
ce do. QA ee os Sen a See ee Ae eet nce See ee ae 79 
ee do. OR Oi ae Wy Sa eet eee es ee 79 
= ¢ do. SOON Se Sere lt oo ae tet sd aten ey ae ease 74 
The marls of the Cooper are on an average richer in carbonate of lime, than those of the Ashley, 
but they are poorer in phosphates. In specimens examined from various beds on the river, I found 
it to vary from a mere trace to 1.50 per cent. 
The following is the composition of a specimen from Dr. Holmes’ marl pit. 
Carbonatesof ime ss no-one a aaa ee eee a= aa 87.50 
Silicas > Foes Be ee eee ee ease ee dese 6.00 
Alumina andi irons secon eee =a = 5.00 
IBhosphatetotelimet = =s2— 2 oe a en omee eens 1.50 
100.00 
A specimen from Pooshee gave, 
Carbonate. of lime, 224 G4. pts Se st aes S 90.00 
Silican, Joc. 92 25 se eee SS eas = SSS 4.00 
Alumina and Oside of iron and loss,------------ 5.50 
Phosphate’ of limes. sc ehesssgeu. ds Lei saeusas 50 
100.00 
