6(1 
ROCK FLOOR OF GREATER NEW YORK. 
{wlL>76. 
Summary of records of borings made in New York and vicinity — Continued. 
2. BORINGS IN THE BOROUGH OF MANHATTAN— Continued. 
Location. 
Riverside Park eaiensum—i iontinued 
Twelfth avenue — Continued. 
3 feet north of 698 
50 feet north of 007 
S tret east of 700 
2 feet east of 701 
50 feet north of 700 
55 feet north of 697 
4 feet north of 704 
50 feel north of 705 
142d street 
7»> feet north of 707 
30 feet north of 70S 
100 feel north of 707 ........ 
5i) feel north of 710 
50 feel north of 711 
L43d street 
4 feet south of 713 
25 feet north of 713.. 
50 feet north of 715 
5 feet north of 716 
25 tret north of 717 
100 feet north of 713 
25 feet north of 710 
25 feet north of 720 
5 feet north of 721 
5 feet east < »f 722 
20 feet north of 722 
5 feet north of 724 
25 feet north of 725 
144th street 
5 feet north of 727 
25 feet north of 728 
25 feet north of 729 
25 feet north of 730 
100 feet north of 727 
Depth of boring to rock 
As given. 
-18.50 
12.:;:; 
18.50 
■18 
17 
-28. 50 
-16.75 
-13 
33.50 
31. Hi 
-29 
-18.75 
-33 
28.33 
-25 
22. 5 
20. 66 
-12 
11 
S. 50 
- 8 
s 
s 
9.16 
11.50 
8.33 
- 5 
0. 50 
o. it; 
8 
s. 50 
o 
Referred 
to U. S. 
datum, 
Sandv 
Hook. 
• 6 
5 
17 
5 
1 
-22 
10 
17 
7 
21 
10 
-lo- 
ll 
15 

1 
:; 
4 
-1 
4 
:> 

4 
7 
6 
4 
2 
3 
4 
3 
3 
Kind of rock, if known. 
Rock or bowlder. 
Do. 
Do. 
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• Do. 
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