276 
ANNALS NEW YORK ACADEMY OF SCIENCES 
b ) Long Island City , between Borden and Flushing Axes, and eastward along the East River. 
( Continued.) 
Serial No. 
Original 
mark 
Location 
Depth 
to Rock 
M. H. W. 
To Rock 
U. S. 
datum 
Rock 
penetra¬ 
tion 
Form¬ 
ation 
Variety and remarks 
250 
98 
45' W. Front St., 
Nassau Dock 
-24' 
-21.5' 
56' 
Ford. 
Not found. 
251 
97 
65' W. Front St. 
S. of Nassau Slip 
-24' 
-21.5' 
56' 
252 
107 
60' W. Front St., 
S. of Nassau Slip 
-27' 
-24.5' 
54' 
“ “ 
253 
96 
50' W. Front St., 
S. of Nassau Slip 
-31' 
-28.5' 
49' 
Ford. 
Granite gneiss. 
254 
T 
Pier 475' W. 
Front St. 
-44' 
-41.5' 
56' 
Dioritic banded gneiss. 
255 
U 
370' W. Front St. 
-47' 
-44.5' 
50' 
Diorite gneiss and gar- 
netiferous gneiss. 
256 
V 
Pier 270' W. 
Front St. 
-49' 
-46.5' 
52' 
Granodiorite gneiss. 
257 
X 
80' W. Front St. 
-28' 
-25.5' 
10' 
Diorite gneiss. 
258 
7 
Front St. No. of 
Flushing. 
-43' 
-40.5' 
33' 
Hornblende biotite 
gneiss, banded. 
259 
6 
Front St. So. of 
Borden Ave. 
-41' 
-38.5' 
59' 
Garnetiferous granodio¬ 
rite. 
260 
Y 
E. side Front St. 
-57' 
-54.5' 
IS' 
Garnetiferous granodio¬ 
rite and pegmatite. 
261 
N 
L. I. City R. R. 
Station, 150' E. 
Front St. 
-43' 
-40.5' 
13' 
Diorite and granitic 
gneiss. 
262 
M 
L. I. City R. R. 
Station, 260' E. 
Front St. 
-20' 
-17.5' 
10' 
Not found. 
263 
5 
L. I. City R. R. 
Station, 350' E. 
Front St. 
-17' 
-14.5' 
43' 
Ford. 
Light granite gneiss. 
264 
8 
West Ave. angle 
-18' 
15.5' 
46' 
“ 
Coarse granodiorite. 
265 
Z 
60' E. West Ave. 
S. Yard. 
-14' 
-11.5' 
4' 
Granodiorite and peg¬ 
matite. 
266 
23 
160' ditto 
-IS' 
-15.5' 
14' 
“ 
Biotite gneiss striped. 
267 
24 
260' ditto 
-29' 
-26.5' 
26' 
“ 
268 
25 
360' ditto 
-44' 
-41.5' 
9' 
“ 
Banded granitic gneiss. 
269 
26 
100' W. Vernon 
Ave. 
-9' 
-6.5' 
11' 
Light granodiorite. 
270 
27 
R. R. Yard 70' 
W. Vernon Ave. 
-21' 
-18.5' 
16' 
Foliated granodiorite 
(marginal). 
271 
36 
Borden Ave. 400' 
W. Vernon Ave. 
-15' 
-12.5' 
10' 
Diorite gneiss. 
272 
34 
Borden Ave. 300' 
W. Vernon 
-34' 
-36.5' 
10' 
“ 
Banded gneiss, with 
pegmatite, 
273 
33 
Borden Ave. 200' 
W. Vernon 
-34' 
-31.5' 
7' 
“ 
Granodiorite. 
274 
31 
Borden Ave. 100' 
W. Vernon 
-43' 
-40.5' 
7' 
