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river. South of this point it appears along both sides of Shrews- 

 bury river, east of the head of which it is seen skirting tiie sea 

 coast. From about two miles north of Long Branch, southward 

 as far as Shark Inlet, the stratum reaches almost to the ocean 

 beach, being only hidden in places by a superficial covering of 

 white sand, blov/n for a short distance inland from the shore. 

 We do not find it either at the sea side or for three miles in the 

 interior any where south of the estuary of Shark river. But a 

 little west of the Poor House the edge of the formation crosses 

 Shark river, and takes a gently undulating course towards the 

 southwest. 



In consequence of the wooded character of the country along the 

 southeastern side of the greensand, and the irregular and obscure 

 manner in which the white sands overlap this stratum, the south- 

 east boundary is much less capable of being distinctly defined than 

 that on the northwest. Aiming at as close an approximation to 

 accuracy as the structure and condition of the region will permit, 

 I have traced the margin of the formation from Shark river to 

 where it crosses the Manasquan river, about one mile east of 

 Squankum. Its general course thence is nearly westward until 

 it is seen on Tom's river, which it crosses about a mile northeast 

 of Goshen. Assuming in this neighbourhood a nearly southwest 

 direction, and passing near the above village, it ranges about a 

 mile to the southeast of New Egypt, and passes Scrabbletown 

 to Rancocus creek, which intersects it about one mile east of 

 Pemberton. Thence it passes about one mile and a half south- 

 east of Vincentown, and a mile southeast of Medford, reaching 

 Timber creek near Clementon. It lies rather more than a mile 

 to the southeast of Blackwoodtown. On Mantua creek, the 

 limit of the greensand is rather further to the southeast, being 

 visible near a mill-dam about two miles in a direct line from 

 Glassboro. Upon Raccoon creek, its position is nearly two miles 

 to the southeast of Mullica Hill, and upon Salem creek about half 

 a mile east of Woodstown. Pursuing the same general south- 

 west direction, it is seen on Mannington creek, three-fourths of 

 a mile to the southeast of Mannington Hill; beyond which to 

 Salem, where it terminates, it follows very nearly the margin of 

 the meadows of Fenwick's creek. 



The belt embraced between the two lines thus delineated, has 



