. Bulletin of the Department of Agriculture. Agriculture; Agriculture. KEPORT ON THE PHOSPHATE FIELDS OF SOUTH CAROLINA. 3 the phosphate properties arc reached by the Atlantic Coast Line, the Southern, and the Charleston & Western Carolina Railroads, or spurs from these roads. CLASSES OF PHOSPHATE. The South Carolina phosphate deposits are usually classified under two heads, namely, the "River Rock" and the "Land ; The River Rock was at first the most easily exploited, since it was cleaner and after being dredged from the river bed required but little. Fig. 1.
. Bulletin of the Department of Agriculture. Agriculture; Agriculture. KEPORT ON THE PHOSPHATE FIELDS OF SOUTH CAROLINA. 3 the phosphate properties arc reached by the Atlantic Coast Line, the Southern, and the Charleston & Western Carolina Railroads, or spurs from these roads. CLASSES OF PHOSPHATE. The South Carolina phosphate deposits are usually classified under two heads, namely, the "River Rock" and the "Land ; The River Rock was at first the most easily exploited, since it was cleaner and after being dredged from the river bed required but little. Fig. 1.—Approximate distribution of the South Carolina phosphates. subsequent treatment to make it a marketable product. It was some time before a satisfactory method of mining and cleaning Land Rock was devised. The two types of phosphate, however, are practically identical, the -River Rock being merely the Land Rock washed down and concentrated in the river beds. The mining of River phosphate has now ceased and the rock shipped from South Carolina is all from the land and marsh deposits. This report, therefore, deals chiefly with the land Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original United States. Dept. of Agriculture. [Washington, D. C. ?] : The Dept. : Supt. of Docs. , G. P. O.
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