[Brick wall with carved forest scene on top.]

[Interior, possibly a basement, with unidentified equipment.]

29th Street pier. S.S. Mobile City ship, Isthmian Line. Sump pump pipes

[Interior with machinery.]

[Machine room.]

[Heating control valve on 17th floor of unidentified building.]

[Exhaust system on roof.]

[Interior, boiler room.]

[Interior, view of air ducts.]

[Brick Wall]

[Interior, boiler room.]

[Interior of unidentified building, possibly a factory.]

[Factory building, structure on roof.]

[Interior, boiler room.]

[Interior, detail of air ducts.]

[Interior, radiator manufacturing shop.]

Woolworth Building, West Section of Rear Basement Wall at 1 1/2 Barclay

[Interior, detail of meters.]

[Interior, boiler room.]

[Brick Church.]