"2581 Foundation forms for the Arizona Power House, taken from the Nevada Valve House Bench. March 16th, 1934
2617 Telephoto view of foundation forms for the Arizona Power House, taken from Lookout Point. April 1st, 1934.
2599 Forms for Arizona Power House retaining wall. March 14th, 1934.
2610 View looking into Power House block A-5. March 28th, 1934."