HOBBS.] 
TRANSVERSE SECTIONS OF THE ISLAND. 
25 
engineering works upon the island, are unusually complete. Tl 
are: (a) A transverse series of sections near the line of 32d street; (h) 
a longitudinal section along 
Broadway from the Battery to 
33dstreet(Pl.V); (c) a longitudi- 
nal section from near the north 
end of Central Park, 96th street, 
along Lenox and Westchester 
avenues to Melrose avenue in 
the Bronx; and (d) a longitudi- 
nal section along Broadway and 
Eleventh avenue between 72d 
and D}^ckman streets. The lo- 
cation of these sections will be 
3. 
clear from fig. 
TRANSVERSE SECTIONS OF 
THE ISLAND. 
The elaborate system of bor- 
ings made by the Pennsylvania, 
New York and Long Island 
Railroad Company in connec- 
tion with the projected tunnels 
from Weehawken to Long- 
Island City have been kindly 
placed at the writer's disposal 
by Messrs. Charles M. Jacobs 
and A. Noble, the chief en- 
gineers, respectively, of the 
North River and East River 
sections of the tunnels. The 
sections of fig. 1 have been pre- 
pared by combining the records 
of the North River tunnel sec- 
tion, the elaborate profiles in 
the neighborhood of the termi- 
nal site, between Seventh and 
Ninth avenues, and the sheets 
7 to 10 of the East River section 
of the tunnels. Thus combined, 
these sections comprise a com- 
plete section across the island 
near the line of 32d street, an 
dmost complete section along 
53d street, an additional section 
1 -T[ 
o JS o 5 5 « o 
V li PI * 
ui CD 
O CO 
r+ 
1 
Pierhead line 
V vl.4?^/ /f/ ' ,e <=' < ^ ///7e 
3 
\ L 
'2 th Ave. 
s 
\ 
* 
1 
§ 
< [ ) ' \ 
-Jlth Ave, 
a> 
Mi 
i \ ' 1 
W 
CD 
BO 
^ \ 
o 
^ v ~ ^ \ 
Z 10 th Ave, 
* v - ^ N 
o" 
* \ 
3 
* L 
o 
5 * 5 ^ t- 9Ul AVe - 
^ J' 
/I 
2 
c: ( /;' 
p- 
- v . ^> V; 
P 
* s " ^ /'iz:6c/> Ave. 
a f r 
s 
^ I 1 
(-1 
Co c c« q, V 
2L 
>fc Co f\» >• ^ 
3 
Si** * 
j— 7i/7 Ave 
C 
0) ,/ 
n- r 
£ 
* * 5 3 N 
CD 
CD 
s 
< ( 
p- 

CO 
. o ( 
>ZL5tft Ave. 
S" 
/ 
/ 
,' 
zn 
3 
11 A*fa<7/'son Ave 
CD 
w 
"ST 
-—■4 th Ave 
Si 
•0 1 
[ 
CD 
pT 
— Lex/npton Ave. 
a 
o 
V 
•8 ), 
~ Jrcf vlve 
§ ft' 
Pi 
\ 
^ 
\ 
o 
A 
— ?ncr Ave. 
ca 
a A 
,) 
O I ] 
r? Ij 
— /st Ave. 
<T> >^ 
f 4 /^ jBu/rtfteacf sine 
**'"'« Zl ^ er/jeaa //'ne 
1 /fij* ' 
\ / j § -n 
U fu N> — - I ! '"».* ._ li 
o o* o ^ ° <-" ,- 
9 o 9 o o 9 o 
?% 
ilong 31st street between Seventh and Ninth avenues, and a section of 
he steep eastern slope at East River near 31th street. 
