Pg.25 #2578 Boulder Dam, looking upstream. March 16th, 1934. Pg.25 #2618 Boulder Dam, looking upstream. April 1st, 1934.

Pg.26 #2581 Foundation forms for the Arizona Power House, taken from the Nevada Valve House Bench. March 16th, 1934. Pg.26 #2599 Forms for Arizona Power House retaining wall. March 14th, 1934. Pg.26 #2617 Telephoto view of foundation forms for the Arizona Power House, taken from Lookout Point. April 1st, 1934. Pg.26 #2610 View looking into Power House block A-5. March 28th, 1934.

Pg.2 #2260 Nevada Spillway, looking upstream. June 27th, 1933. Pg.2 #2242 Lower Portals of Diversion Tunnels, discharging, 73,000 cubic feet per second flow into Colorado River. June 16th, 1933. Pg.2 #2259 Arizona Spillway, looking upstream, June 27th, 1933.

Pg.9 #2388 Boulder Dam, looking upstream. Oct. 15th, 1933. Pg.9 #2405 Upstream plug in Diversion Tunnel No. 3, after excavation of raise and Upstream Uptake Tower was completed. Oct. 30th, 1933. Pg.9 #2413 Boulder Dam, looking downstream. Oct. 31st, 1933.

Pg.27 #2568 Union Pacific "Train of Tomorrow" on the Lomix Trestle, at the upstream face of Boulder Dam, where the concrete is transferred from Lomix trains to the Dam. March 9th, 1934. Pg.27 #2589 View taken from No. 2 Arizona derrick, showing Nevada Spillway in the background. March 24th, 1934. Pg.27 #2616 Looking upstream in Number 4 raise and plug. March 28th, 1934.

Pg.28 #2590 Arizona Intake Towers, from the Nevada Himix trestle, with Arizona Spillway shown in the background. March 24th, 1934. Pg.28 #2591 Nevada Intake Towers from the Arizona side. March 24th, 1934.

Pg. 8 #2386 Concreting equipment in No. 1 Inclined Spillway Tunnel. October 7th, 1933. Pg. 8 #2363 Boulder Dam, looking upstream. September 30th, 1933.