XXXVI ANALYSIS OF MARLS. 
Silica, ----.---------- -- --------------- ++ 22 oe een ee == 10.26 
Carbonate of lime,..s--2s -b= se. 5-02 24-5 -bedecee e+e <------- as =- 66.04 
Carbonate of magnesia,....-.--------------- -=-------------------- 2.56 
Phosphate of lime and magnesia, with traces of peroxide of iron,.--~-----8-60 
ATO ing eee te ae ee ee ee nee ee = ee 
Waterics Ue 8 cco steed) see ease Jere oacete beets a-2 stank 0, 
— 
92.40 
Rich in ammonia, sulphate of lime, chloride of calcium, with distinet traces of bitumen. 
(+.) From Dr. Gedding’s plantation, called “ Elms,” on Goose Creek, a branch of Cooper River, and fifteen 
miles from Charleston. It has a pale buff color, and is Jess fossiliferous than the variety from Drayton Hall. 
Silica, 22 = ee ee eee or ert) 
(arbonatetot lime.c es eee ere sree see eeeees eae neo eee OOM) 
(arbonatetot macnesin ne seee ose ee eee = ee ee eee eee eee 
Phosphate of lime and magnesia, with traces of peroxide of iron,--------- 9.20 
UNOS So oe Se Sarees Ge cass seen saab aero caseed sysonsacadasll) 
Wiaterec = eee nose been tse ce eee ens seem em ee in aiae meme aoe Scene 4.00 
101.04 
Bitumen and soluble matter as in (@-) 
(c.) From Mr. T. Harleston’s plantation, called Elwood, on Cooper River. 
SHG cs ee ee ee A pe Soar me BE ese Se 16.200 
(Gr ars ora aati mt LL yy wm 76.880 
@inbonateor mapnesia.s= 22 3222-22 Seo e ese ee se 1.406 
Phosphate of lime and magnesia,--—-.---.-------------------------- 2.600 
PAN UMN eee rs Sete ate se ee te ee la ee traces. 
Water,._.-- =. S25 e282 Soe SsaS eas See SE See seen n= == === = 4.00 
101.086 
Soluble matter and bitumen, only in traces. 
Mean of the three results. 
Milica Seco oe ec ee ester ee eee eee erat eee aoa a een ae 15.00 
Carbonate of lime and magnesia,..------------------~----~--------- 72.06 
Phosphate of lime and magnesia,.---------------------------------- 6.80 
JN eS AS e Se So ce es Senge Capea ee oc oaas Sen EsonaieSasaaes 46 
AES ee a ae a a ca chao ne ao otic 4_00 
98.32 
3. Argillaceous chalk-marl. From Mr. Dixon's Plantation. 
This is a light, porous, fine grained, clayey looking marl, which emits a strong argillaceous odor when moist- 
ened, and easily falls to pieces in water. Its color is dark grey, with a tinge of yellow. It embraces small 
white fragments of shells, and strikingly resembles certain fresh-water marls. Among its particles, when well 
washed, are noticed grains of sand and of bone; but the latter in much smaller quantity than in either of 
the foregoing varieties. 
Silica ee 2 feat ee eo ele ee ee nn 16.00 
Carbonate of lime;e= 3 see ne S eee see ean a ee ee ee a ee 63-50 
Carbonate of magnesia, f+. L0eu: 2 bes Sess Sac teeter 2 estes 7200 
Phosphate of lime and magnesia, with traces of peroxide of iron,.-------- 2.00 
INTUMING, = =o ao eee eee See Seen sie ano ee ee ee eo 
Water eo -5. 2 ce Cees ence jae a eee e Saleatoe ina san eee Oe U0 
98. 25 
Soluble salts, only in traces. 
