"2905 Central section of the Powerhouse, looking toward the Nevada side, showing the floor level. No. 2 adit car in the extreme background. October 30th, 1934.
2908 Nevada Powerhouse, showing the reinforcing and walls around the penstock openings. Pumpcrete machine is in the butterfly valve gallery between the rock abutment and the turbine rooms. October 30th, 1934.
2910 Looking downstream into the Arizona Powerhouse, showing location of the turbine rooms, front room galleries and
penstocks. October 30th, 1934.
2914 Looking upstream into the pipe gallery in the Nevad a Powerhouse, showing beams and concrete. October 30th, 1934."