[Interior, boiler room.]

[Interior, boiler room.]

[Interior, boiler room.]

Manhattan College. Interior, boiler room

Furnace and boiler room

[Interior, boiler room.]

Furnace and boiler room

[Interior, boiler room showing fire damage.]

116 West 32nd Street. Milliner. Interior, boiler room

153 Madison Avenue. Redlich & Company, silversmiths. Interior, boiler room

[Interior with machinery.]

Interior, manufacturing shop with boiler, oven and bags

[Machine room.]

[Interior, radiator manufacturing shop.]

["Gulf Queen", boiler room looking to starboard.]

Ajax [Ajax Cloth Sponging Co.] Boilers

Rodin Studio Building. Boiler Room - Looking S.

Sixth Avenue. Boilers

Long Island City. Metropolitan Life Insurance Company, Printing Division Building. Interior, boiler room

[Interior, detail of meters.]