tlttfc OF THtRTY-THIftf) STBEM. 
m 
Summary of records of borings made in New York and vicinity — Continued. 
2. BORINGS IN THE BOROUGH OF MANHATTAN— Continued. 
Location. 
Depth of boring to rock. 
Kind of ro 
Serial 
num- 
ber. 
As given. 
Referred 
to U.S. 
datum, 
Sandy 
Hook. 
ck, if known. 
On line of S2d street— Conti nued . 
613 
Fifth avenue, east line (core) 
- 
2 
Gneiss. 
614 
First avenue, west line (core) . . . 
13 
15 
Do. 
615 
Halfway to Second ave. ( wash ) . 
3 
5 
Rock or 
bowlder. 
616 
Second avenue ( core ) 
<_>• 
6 
< rneiss. 
617 
Halfway to Third avenue ( wash ) 
- 16 
- 14 
Rock or 
bowlder. 
618 
Third avenue, east line (core) . . . 
1 
3 
Gneiss. 
619 
Bulkhead line, foot of 32d street 
(core). 
-112 
-110 
Do. 
620 
First avenue, 100 feet east of east 
line (core). 
On line of 33d street. 
Near Ninth avenue— 
4 
• 2 
Do. 
621 
20 feet east of east line 
334. 4 
37 
Gneiss. 
622 
240 feet east of east line 
324. 4 
27 
Do. 
623 
475 feet east of east line 
332. 7 
35 
Do. 
624 
720 feet east of east line 
Near Eighth avenue — 
322.6 
25 
Do. 
625 
626 
70 feet east of east line 
282. 5 
286. 9 
- 15 
11 
Do. 
Do. 
370 feet east of east line 
627 
570 feet east of east line 
330 
32 
Do. 
628 
770 feet east of east line 
334. 2 
37 
Do. 
629 
Near Fifth avenue, west line 
(core). 
23 
25 
Do. 
630 
100 feet west of west line (wash ) . 
3 
5 
Rock or 
bowlder. 
631 
600 feet west of west line (core) . 
- 15 
17 
Gneiss. 
1 632 
Broadway, east line (core) 
- 34 
36 
Do. 
633 
Near Sixth avenue, west line 
(wash). 
- 32 
34 
Rock or 
bowlder. 
634 
500 feet west of west line (wash ) . 
■2: 
26 
Do. 
635 
575 feet west of west line (core) . 
— 5 
5 
( rneiss. 
636 
Seventh avenue, east line (wash) . 
- 56 
38 
Rock or 
bowlder. 
637 
Near Third avenue, west line 
( wash ) . 
- 3 
5 
Do. 
638 
Half block west (wash) 
-- 6 
8 
Do. 
