354 C. U. Shepard, Jr., on the composition of the 
Art. XXXIII.—Notes on the occurrence and composition of 
the Nodular Phosphates of South Carolina ; by Cuarzes U. 
Sueparp, Jr., M_D., Prof. of Chemistry in the Medical Col- 
lege of the State of South Carolina, 
Tue belt of nodular phosphates appears to extend, more or 
less interrupted from the Wand 
teen to thirty miles above Charleston, in a south-southwesterly 
direction, parallel to the coast line, as far as St. Helena Sound 
and Bluffton, near Port Royal. As yet the precise area is 
such extent as this area above mentioned; on the contrary, 
the bed appears only in patches, some of which, however, are 
many miles in diameter. On the Wando and Cooper rivers 
the nodules are found in comparatively small beds, generally 
Ashley beds were the first discovered, are the best known, we 
est in extent, and most mined, This deposit extends, at @ 
leston, but because of their lying close to the surface (ge2e- 
rally within two feet) in a light soil ‘which separates easily from 
the on handling or washing. The nodules are 0 ® 
yellowish-gray color, of less specific gravity than those else- 
where found, their surfaces but slightly irregular, and ae 
composition tolerably uniform. The best beds lie on the fH 
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