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ing a small proportion of the green granules, and under this again 

 the straw-coloured limestone two feet thick. 



These beds hold the same order, and are identical with those 

 above the green marl at New Egypt and elsewhere, towards the 

 eastern side of the " marl tract." One-fourth of a mile from the 

 mill, the beds have been cut through, in digging a well into the 

 greensand stratum underneath. The limestone was reached, 

 between seven and eight feet below the surface. It was in thin 

 irregular beds, separated by incohering sand and calcareous 

 grains, similar to the mixture which composes the rock; its total 

 thickness is about six feet ; the organic remains are the same 

 which characterize the limestone at Vincentown. 



The limestone belt measured from northwest to southeast, 

 appears as far as exposed to be about one mile wide, and there 

 are pretty good reasons for concluding that it expands still more 

 to the southeast. 



Fincentoivn. — The thin limestone stratum of the vicinity of 

 Vincentown extends to the northeast, as far as Benjamin Pea- 

 cock's, on the road between Vincentown and Pemberton, and 

 one mile from the limekiln, on the south branch of the Rancocus. 

 To the southwest it extends between Vincentown and Medford, 

 and is seen on the farm of James Lippincott. It occurs at 

 Hosea Moore's, on the Red Lion road, three and a half miles 

 from Lumberton. 



I do not think it at all established that Benjamin Peacock's is 

 the extreme northeastern limit of this formation, for there is a 

 thin band of calcareous rock in the marl bank at New Egypt, 

 which is almost identical in character with the rock at the lime- 

 kiln on the Rancocus; and what is remarkable, the top bed at 

 Egypt is identical with the top or overlying bed at the limekiln, 

 being a thin layer of a brownish siliceous sand, tinged here and 

 there with green. This would extend the limits of the limestone 

 much towards the northeast. On the Rancocus it is very thin, 

 consisting of two layers, each only six or eight inches thick, 

 and separated by eighteen inches of sand. It overlies the marl, 

 as we know the corresponding stratum does in Mannington, 

 Salem county. 



