82 
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. 
Miscellaneous — Records not classified — 
Continued. 
125th street, 300 feet east of 
Eighth avenue. a 
St. Nicholas avenue — 
125th street, northwest corner «. 
126th street, southwest corner a . 
409 West 14th street (well) ° . ... 
Hunters Point, near Long Is- 
land depot, 
Quarantine station, Hoffman Is- 
land. 
East 13th street, between Third 
and Fourth avenues. 
Third avenue and 14th street 
(well). 
Cornell iron foundry, 25th street 
between Tenth and Eleventh 
avenues. c 
55th street and Fifth avenue, 
Tidewater Bldg. Co. 
Another boring 
21 and 23 West 22d street, F. H. 
Leggett. 
28-32 West 22d street, Thomp- 
son-Starret Co. 
Allaire's well, foot of Cherry 
street, near Corlear.' / 
Nagle avenue <? 
59th street and West End avenue, 
northeast corner/ — 
100 feet north of corner •» 
100 feet east of corner / 
Depth of boring to rock. 
given. 
50 
12.5 
5.16 
7 
16.3 
76 to -80 
35 to -55 
35 
Referred 
to U. S.- 
datum, 
Sandy 
Hook. 
24 
10 
20 
Do 

33 
Gneiss. 
20 
— 7 
Rock. 
69 
t50 
-59 
Do. 
Do 
19 
16 
Do 
15 
22 
Do 
63 
-52 
48 
55 
45 
22 
-61to-65 
Kind of rock, if 
known. 
No rock. 
Do. 
Do. 
ZE OTd \kF-;kF tesmn wells ; surface datum. " Rock not sounded." 
b No? :. 1234-1238, Veatch, A. O, U. S. Geol. Survey. 
c Phillips & Worthington. Record of well 1239: 6-10 feet, filling; 10-12, sand and gravel; 12-15, f 
brown sand; 15-18, fine black sand; 18-24, mud; 24-27, medium sand; 27-43, medium brown sand; 
47, coarse sand and gravel; 47-58, medium sand; 58-63, coarse sand to rock. Record of well 1240: 0- 
teet, loam; 10^-121, sand and gravel; 12^-14, disintegrated rock derived from schists and gneis 
Kecora of well 1241: 0-5 feet, loam mixture; 5-lOi, soft light-colored rock; 10M2, black soft ro 
Kecora ol well 1242: 0-1 foot, loam; 1-3 feet, clay; 3-5, medium sand; 5-7, gravel and clay mixti 
/-y, disintegrated rock. (Pennsylvania Railroad tests show rock in this block to be at from 5 t< 
e „f • Record of well 1243: 0-7£ f eet, filling; 7£-12, fine dark sand; 12-12^, sand and muck mixti 
3~d- *' # ravel and mi ca to rock, 
librar V M *' Spring water vs - river water for supplying the city of New York, 1835, p. 15. (Aj 
*<A K1 ^P P ' Eu ^ ene - division engineer, rapid transit commission. From Dyckman street north 1 
teet, piles were driven to a depth of 35 to 45 feet, and in one instance to 55 feet. 
J waussen & Price Brewing Companv. Wells 1246 and 1247, 625 feet deep to ' limestone " (doubt 
serpentine filled with calcite). 
