And the “ Great Carolina Marl Bed.” 79 
from a specimen obtained from Dr. Ravenel, in 1867, 
resulted, through the analysis of Dr. N. A. Pratt, the 
information of the high percentage of Phosphate it 
contains. See remarks p. 69. 
The Company own its mines on Ashley River, from 
which they dug and shipped the first cargo of rock 
that was sent from Charleston, and have been the pio- 
neers here in the manufacture of this material into a 
fertilizer. 
They have mined a large amount of crude rock, a 
portion of which has been sold to other Companies 
and the balance manipulated, in this City, into a fer- 
tilizer, which has given a reputation to these deposits, 
and caused in a great degree the present excitement 
in Phosphatic enterprises. The present capital of the 
Company is $300,000. 
John R. Dukes, President; T. D. Dotterer, Super- 
intendent. 
iin BE PETIVWAN pSULPHURIC. “ACID”. AND 
SUPERPHOSPHATE ‘COMPANY. 
This Company was organized at Charleston, in the 
year 1868, for the purpose of manufacturing at home 
the highest grade of fertilizers from the Native 
Bone Phosphates lately discovered in such abundance 
in South Carolina. To effect this object it was neces- 
sary to manufacture on a large scale Sulphuric Acid, 
which is the proper chemical solvent of these Bone 
Phosphates. This Company therefore immediately 
erected large Sulphuric Acid Chambers, which they 
