4 CONTENTS. 
Part II.— Boeings Made in New York and Vicinity— Continued. P**se. 
Borings b< neath channels on water front — Continued. 
East River sections : 32 
East Ri^er Gas Company's tunnel 32 
Bridges Nos. 2, 3, and 4 . 32 
East River reefs . 34 
Center line of 42d street ( produced ) . . 34 
Pennsylvania Railroad tunnel 34 
New York-Brooklyn tunnel of rapid transit commission 35 
Hudson River front 36 
Dock, bulkhead, and pier lines 36 
.Miscellaneous 38 
HikIsi.d River sections 40 
Reef one-fourth- mile from pier A 40 
Bedloe Island 40 
McAdoo tunnel 40 
Pennsylvania, New York and Long Island Railroad tunnel 40 
Proposed 1 >ridge at 59th street 41 
Harlem River front and sections 41 
Spuyten Duyvil Bridge 41 
Dock line 41 
Washington and High bridges 42 
New aqueduct 42 
Macomb's dam, Central Bridge 43 
Line 400 feet east of Central Bridge 43 
New York Central and 145th street bridges 4."> 
Rapid-transil tunnel 43 
Madison, Park, Third, Second, and Willis avenue bridges 44 
Borings in the Borough of Manhattan 44 
Line of subway 44 
On or near Broadway 44 
On Lexington avenue, 110th street, and 34th street 45 
Profile along Broadway 49 
Foundations of tall buildings 51 
Lines of 31st, 32d, 33d, and 34th streets 55 
Along Fourth avenue -. 58 
Riverside Park extension 59 
Riverside and Manhattan viaducts and Tenth avenue 66 
Records from miscellaneous sources 67 
Borings in the outlying boroughs and in other Idealities near New York.. 83 
Borough of Brooklyn 83 
Borough of Queens 86 
Borough of the Bronx 87 
Adjacent points in New Jersey and elsewhere 89 
Index 95 
