78 
ROCK FLOOR OF GREATER NEW YORK. 
[BULL. 270. 
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. 
Serial 
num- 
ber. 
As given. 
Referred 
to U. S. 
datum, 
Sandy 
Hook. 
Kind of rock, if known. 
Miscellaneous— Records not classified- 
Continued. 
1155 
Empire building, 71 Broadway". . 
- 54 
- 19 
No rock. 
1156 
Washington Life building, 141 
Broadway. « 
- 75 
- 40 
Do. 
1157 
City reservoir, corner Third av- 
enue and 13th street. 6 
15 
22 
1158 
7th and Lewis streets & 
93 
- 83 
West 39th street c— 
f- 18.9' 
1159 
150 feet east of Tenth avenue a . 
New Mutual Life building — . 
]- 17.5 
I- 15.3 
17 
19 
1160 
16 Liberty street, on street line . 
- 61 
1161 
39 Cedar street, on street line . . 
— 41 
Broad-Exchange d — 
(-41 1 
1162 
Exchange place and Broad 
street, southeast corner. « 
j- 47. 6 m 
[- 48. 8j 
- 31 
( rneiss. 
Wall street, Exchange building^ — 
r- 41.1- 
L163 
North side p]xchange place, 
between William and Broad 
streets. « 
Battery place building d — 
43. 6 
- 46. 5 
I— 42.3' 
43 
- 26 
Do. 
L164 
Battery place, between West 
and Washington streets. a 
ci> 
41 
Do. 
1165 
James Everhardt's brewery, 
south side 133d street, 200 feet 
east of Fifth avenue (well), e 
- 98 
- 80 
Rock <>r bowlder. 
1166 
Fourth avenue and 50th street 
(surface)./ 
57 
Gneiss. 
1167 
Morris Park, northwest corner r/. . 
- 40 
14 
Do. 
1168 
125th street and Madison avenue. 
-125 
-121 
1169 
Lenox and 160th streets 
- 60 
- 45 
- 60 
- 45 
1170 
116th street and East River 
1171 
112th street and First avenue 
- 55 
- 46 
« Depth is below curb. 
b Mather, Wm. M., Geol. New York, pp. 605-625. 
cMaynicke, Robt., architect. Curb datum. 
a Purdy.c.T., consulting engineer, Geo. A. Puller Construction Company 
e Communicated at brewery. 
/Waller, Elwyn, chemist. 
pNos. 1167-1176, Washington, Win. De H. 
