﻿258 ' NEW YORK STATE MUSEUM 



232 Southeast corner of Clinton and Madison streets 



Surface elevation 25 feet 



This hole was reoccupied as no. 304 and penetrated the rock 

 floor at el. -353 feet 



The boring has not progressed far enough to recover identifi- 

 able material for rock formation 



21 1 East side of Clinton street south of Madison 



Surface elevation 24 



Rock floor elevation uncertain because of failure to recover 

 core and the obscurity of the material washed up. Inter- 

 bedded limestones and gneisses of Fordham series were 

 recognized from el. -336 feet to el. -680 feet 

 51 and 207 Henry street between Clinton and Montgomery 



Surface elevation 32.4 feet 



Rock floor -214.6 feet. All badly decayed to great depth mostly 

 believed to belong to limestone and underlain by interbedded 

 Fordham gneiss at about -345 feet 

 221 Clinton street near Monroe street 



Surface elevation 22 feet 



Rock floor at el. -116 feet 



Fordham gneiss mostly very sound, with some thin interbeds 

 of limestone at about el. -500 feet 



Dip of structure 45 ° to 8o° 

 226 West side of Clinton street, north of South street 



Surface elevation 10 feet 



Rock floor at el. -37 feet 



Fordham gneiss in very sound condition showing structure at 

 6o° to 90 

 305 Southwest corner of Clinton and South streets 



Surface elevation 9 feet 



Rock floor at el. -50 feet 



Fordham gneiss with structure at 70 



4 Montgomery and Madison streets 

 Surface elevation —32.5 feet 



Rock floor -65.5 feet. Fordham gneiss of granodiorite type 

 Two borings are of special interest and significance, and because 

 of the rarity of such details being recorded they are given more 

 fully below. 



