Unidentified subway tracks.

Shaft No. 4, Steinway Tunnel.

Railroad tunnels and bridge, south of Central Avenue.

Man inside the southern end of a river tunnel.

Right-of-way on portal.

Opposite Trinity Cemetery.

9th Street in Brooklyn.

Unidentified street and railroad tracks.

Unidentified tunnel.

Central Avenue bridge.

Northern section of land tunnel.

Liberty Street.

Sea Beach Line at 5th Avenue.

Sea Beach Line cut supporting building foundation, Fort Hamilton Parkway.

Sea Beach Line and Long Island Railroad at 5th Avenue, looking west to 4th Avenue.

Church Street.

Forest Avenue grade crossing.

West Broadway, north of Thomas Street.

Church Street.

60th Street.