Pg.50 #2843 View taken from the Nevada side, looking downstream on the lower coffer dam, showing excavation and dykes. Sept. 17th, 1934. Pg.50 #2862 Looking downstream toward the upstream face of Boulder Dam, from the Arizona side. Sept. 27th, 1934.

Pg.51 #2919 Boulder Dam, looking upstream from Lookout Point. Nov. 2nd, 1934. Pg.51 #2885 Top of Boulder Dam, looking toward the Arizona side. Arizona Spillway and Intake Towers in the background. Oct. 17th, 1934. Pg.51 #2883 Looking toward the Arizona side, showing top of Boulder Dam, with Arizona Spillway and Intake Towers in background. Oct. 17th, 1934.

Pg.53 #2905 Central section of the Powerhouse, looking toward the Nevada side, showing the floor level. No. 2 adit car in the extreme background. Oct. 30th, 1934. Pg.53 #2910 Looking downstream into the Arizona Powerhouse, showing location of the turbine rooms, from room galleries, and penstocks. Oct. 30th, 1934. Pg.53 #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. Oct. 30th, 1934. Pg.53 #2914 Looking upstream into the pipe gallery in the Nevada Powerhouse, showing beams and concrete. Oct. 30th, 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.56 #2934 Looking upstream in No.1 plug, showing the united portions of the arch and raise into the Nevada Spillway. Nov. 17th, 1934. Pg.56 #2935 Looking upstream into No.3 plug and raise, showing plug concrete in place, cooling headers above and rail extension for moving steel pipe. Nov. 17th, 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.61 #3042 Telephoto view, looking downstream into the Arizona Spillway, showing the bridge under construction. Jan. 28th, 1935. Pg.61 #3020 Arizona Valve House, from the Government Cableway. Jan. 16th, 1935. Pg.61 #3044 Looking downstream into the Nevada Spillway. Jan. 29, 1935. Pg.61 #3032 Looking upstream toward Boulder Dam, showing excavation of the downstream cofferdam. Jan. 28th, 1935.