Pg.35 #2703 Nevada Power House, from the Arizona Valve House bench. May 29th, 1934. Pg.35 #2701 Boulder Dam and Power House, looking upstream from the Downstream Cofferdam. May 29th, 1934. Pg.35 #2702 Arizona Power House, from the Nevada Valve House bench. May 29th, 1934. Pg.35 #2704 No. 5 unit of Nevada Power House, showing No. 3 pour completed. May 29th, 1934.

Pg.39 #2715 Second millionth yard being placed in Boulder Dam. June 2nd 1934. Pg.39 #2741 View of the Drum Gates in the Arizona Spillway. June 21st, 1934. Pg.39 #2744 Top of Boulder Dam, from the Nevada side. Arizona Intake Towers in Background. June 22nd, 1934. Pg.39 #2742 View of Nevada Spillway. June 21st, 1934.

Pg.45 #2802 Looking downstream into the Arizona Spillway and No. 4 raise. Aug. 21st, 1934. Pg.45 #2803 Looking Downstream into No. 4 raise, showing the form work. Aug. 21st, 1934. Pg.45 #2794 Looking downstream from the Nevada side, toward the upstream face of Boulder Dam, showing the Spillways, Arizona Intake Towers and Cableways. Aug. 17th, 1934. Pg.45 #2825 Looking upstream in Upper No. 3 plug, showing pumpcrete and pipes. Aug. 25th, 1934.

Pg.48 #2847 Looking upstream at Boulder Dam and the Powerhouse, from the downstream Cofferdam. Sept. 27th, 1934. Pg.48 #2850 Nevada Powerhouse from the Arizona Valve House bench. Sept. 27th, 1934. Pg.48 #2853 Close-up of the Nevada Powerhouse, showing the draft tubes. Sept. 27th, 1934. Pg.48 #2851 Arizona Powerhouse from the Nevada Valve House bench. Sept. 27th, 1934.

Pg.54 #2918 Upper portal trashrack for Diversion Tunnel no.1, on the Nevada side. Oct. 30th, 1934. Pg.54 #2983 Looking downstream into No.4 Raise, showing close-up of portal forms. Oct. 25th, 1934. Pg.54 #2916 Looking upstream in No.2 Diversion Tunnel, showing the concrete pipe line from the pumpcrete gun to the upstream plug. Oct. 30th. 1934. Pg.54 #2900 Looking downstream into the Nevada Spillway. Oct. 25th, 1934.

Pg.59 #2996 Boulder Dam, looking upstream from Lookout Point. Jan. 2nd, 1935. Pg.59 #3015 Looking across top of Boulder Dam, toward the Arizona side, showing the start of the utility and elevator towers. Jan. 8th, 1935. Pg.59 #3000 View taken from the Arizona side, looking across the top of Boulder Dam, showing elevator and utility towers. Jan. 2nd, 1935.

Pg.62 #3025 Nevada Power House, from the downstream cofferdam. Jan. 28th, 1935. Pg.62 #3059 Diversion Tunnel No.1 Trashrack and counterweight assembly just prior to the diverting of the Colorado river into the tunnel. Feb. 1st, 1935. Pg.62 #3026 Arizona Power House, from the downstream cofferdam. Jan. 28th, 1935. Pg.62 #3054 Diversion of the Colorado River into Diversion Tunnel No.1 as the Gate on Diversion Tunnel No.4 is being lowered. Feb. 1st,1935.