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- Collection: Robert H. Merrill photographs
Tai Tsun Pa spillway another view
Black and white lantern slide of spillways near Tai Tsun Pa, China.
Yen Chow Fu spillway
Black and white lantern slide of the Yen Chow Fu spillway. A low brick wall separates spillways and a small building sits to the right of the frame.
Yen Chow Fu spillway masonry
Black and white lantern slide of the masonry walls of the Yen Chow Fu spillway.
Diagram of modern locks
Black and white lantern slide of a hand-drawn sketch diagram of canal lock systems.
Chinese canal locks recess for stop logs
Black and white lantern slide close-up view of a recessed space carved into the brick wall holding a wooden beam. Ropes and other mechanisms are visible at the top of the frame.
Chinese canal locks double control gates
Black and white lantern slide of a Chinese canal lock with two gates.
Canal spillway of masonry with earth fill
Black and white lantern slide of a dry canal spillway, filled with a layer of bricks.
Canal spillway of masonry abutment washed out
Black and white lantern side of a group of people standing on top of a rectangular masonry structure overlooking a muddy spillway.
Canal boats at Yellow River high water
Black and white lantern slide of a line of sail boats on the Yellow River in China.
Dike of Yellow River at low water
Black and white lantern slide of a rocky riverbank and masonry dike along the Yellow River in China.
Dike of Yellow River at high water
Black and white lantern slide of a masonry dike along the Yellow River in China at high water.
Dike of Yellow River stone wash wall
Black and white lantern slide of a stone dike along the Yellow River in China. A small boat sits on the water near the dike.
Dike of Yellow River stored building materials
Black and white lantern slide of neat piles of stones collected as dike building materials.
Dike of Yellow River beach being closed
Black and white lantern slide of a dike on the Yellow River being closed.
Dike of Yellow River mattress building
Black and white lantern slide of crowds of people along a dike of the Yellow River in China.
Dike of Yellow River plug of earthwork in place
Black and white lantern slide of a dike on the Yellow River with ropes connected from the dike down into the water.
Tientsin-Pukow RR Yellow River bridge
Black and white lantern slide of a railroad bridge entrance. A sign on top of the bridge reads "Erbaut 1909-1912, Maschinenfabrik Augsburg-Nurnberg A.C. Werk Gustavsberg."
Tientsin-Pukow RR Yellow River bridge from below
Black and white lantern slide of a railroad bridge crossing the Yellow River in China.
Tientsin-Pukow RR Yellow River bridge from below traveller
Black and white lantern slide of a railroad bridge taken from below.
Abandoned river channel at Hsu Chow Fu
Black and white lantern slide of a dried up riverbed. In the distance, a tower stands above the horizon.