5(5 
BOCK FLOOR OF GREATER NEW YORK, 
[bull. 270. ' 
Summary of records of boring* made in New York mul vicinity — Continued. 
2. BORINGS IN THE BOROUGH OF MANHATTAN— Continued. 
Location. 
Depth of boring to rock. 
Kind of re 
Serial 
num- 
ber. 
As given. 
Referred 
to U. S. 
datum, 
Sandy 
Hook. 
ck, if known. 
On lint ofS2d street — Continued. 
Near Tenth avenue — 
585 
150 feet west of west line 
290. 9 
— 7 
( Gneiss. 
586 
150 feel easl <>f cast line 
320. 9 
23 
Do. 
587 
400 feet east of east line 
335 
37 
Do. 
588 
700 feet east of east line 
Near Ninth avenue — 
340. 9 
43 
Do. 
589 
120 feet east of east line 
320. 6 
23 
Do. 
590 
350 feel east of east line 
327. 8 
30 
Do. 
591 
550 feet east of east line 
323.6 
26 
Do. 
592 
720 feet east of east line 
Near Eighth avenue — 
311.8 
14 
Do. 
593 
90 feet east of east line 
292 
6 
Do. 
594 
340 feet east of east line 
282.8 
15 
Do. 
595 
550 feet east of east line 
311.3 
11 
Do. 
596 
760 feet east of east line 
321. 1 
24 
Do. 
51)7 
Near Fifth avenue, west line 
( wash). 
- 1 
3 
Rock or 
bowlder. 
598 
Halfway to Broadway (core) .. 
38 
40 
( rneiss. 
599 
Near Sixth avenue, west line 
( wash). 
10 
12 
Rock <>r 
bowlder. 
600 
200 feet west of west line(core). 
31 
33 
Gneiss. 
601 
Halt block west (core) 
14 
16 
Do. 
602 
Seventh avenue, east line | cure | . . 
30 
32 
Do. 
603 
Third avenue, west line (wash >.. 
_ 2 
4 
Rock or 
bowlder. 
604 
Hallway to Lexington avenue 
( wash ) . 
- 15 
13 
Do. 
605 
606 
Lexington avenue (core) 
Wash 
1 1 1 
O GO OC 
2 
Gneiss. 
Do. 
607 
Fourth avenue, east line (core) .. 
608 
West line (wash ) 
C" 
} • 
Rock or 
bowlder. 
609 
Halfway to Madison avenue 
(wash). 
7 
9 
Do. 
610 
Madison avenue (core) 
- 21 
30 
2 
} 2 S 

Gneiss. 
Do. 
611 
Wash 
612 
Halfway to Fifth avenue (core) . 
