72 
ROOK FLOOR <>K OREATER NEW YORK. 
[BULL. '27 
Summary of records of borings made in New York and vicinity — Continued. 
2. BORINGS IN THE BOROUGH OF MANHATTAN— Continued. 
a Datum of Nos. 1028-1031 is point on curb 
& Datum of Nos. 1032-1036 is point on curb 
'•Datum of Nos. 1037-1040 is point on curt. 
«Datum of Nos. 1041-1045 is point on curb 
« Datum of Nos. 1046-1047 is point on euro 
375 feet west of Morris Park avenue, 
corner Boston road and Jackson avenue. 
corner Third avenue and 170th street. 
corner Union avenue and 165th street. 
corner Morris avenue and 163d street. 
Location. 
Depth of boring to rock. 
r 
Serial 
num- 
ber. 
As given. 
Referred 
to U. S. 
datum, 
Sandy 
Hook. 
Kind of rock, if know 
Miscellaneous— Foundations for school 
buildings— Continued. 
45 feel west of 177th street — Con. 
1025 
270 feet south of Vyse avenue.. 
4.66 
r 
" Granite." 
1026 
60 feet west of 1024 
5. 08 
Do. f 
1027 
120 feet south of 1026 
8.50 
Do. 
Amethyst avenue " — 
1051 
1028 
205 feet west of Morris Park 
-12. 25 
"Gneiss." 
avenue. 
1 W. 
1029 
335 feet west of Morris Park 
avenue. 
— 1.33 
Do. 
1030 
69 feet north of 1028 
- 6.66 
:;. 75 
Do. 
1031 
69 feet north of L029 
Do. 
100 feet east of Boston road h — 
m 
1032 
35 feel math of 166th street ... 
. 33 

Do. 
L033 
65 feet west and Iol' feet north 
of 1032. 
- 2.25 
Do. 
1 
1034 
45 feet cast and 160 feet north 
of 1032. 
10. 58 
Do. 
J 
fSI 
Jackson avenue — 
1035 
35 feet north of L66th street ... 
-19.25 
Do. 
L036 
137 feet north of 166th street .. 
-15. 25 
Do. 
170th street c— 
1037 
30 feet east of Third avenue . . . 
S.41 
"Mica." 
1038 
70 feet easl of Third avenue . . . 
3 
Do. 
1039 
75 feet south and 60 feet east 
of 1036. 
1.41 
Do. 
1 
1 
1040 
70 feel south of 1036 
-23. 16 
-21.41 
Do. 1 
1041 
165th street and Tinton avenue'/. . 
"Gneiss." \f 1 
1042 
Union avenue 
-15.50 
-17 
-16.50 
-17.66 
Do. 1 
1043 
107 feet north of 1041 
Do. 1 
1044 
106 feet north of 1042 
I 
Do. I 
1045 
58 feet north and 130 feet east of 
1041. 
Do. 
163d street «— 
1046 
34 feet west of Morris avenue .. 
-12.66 
"Granite." 
1047 
175 feet west of Morris avenue . 
-22. 50 
Do. 
