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- Subject is exactly "Canals"
Mexico. Xochimilco Canals
Black and white lantern slide of boat traffic on the Xochimilco Canals in Mexico City.
Mexico. Xochimilco Canals distant boats
Black and white lantern slide of boat traffic on the Xochimilco Canals in Mexico City.
Mexico. Xochimilco Canals boats close up
Black and white lantern slide of boat traffic on the Xochimilco Canals in Mexico City.
Mexico. Xochimilco Canals distant boats
Black and white lantern slide of boat traffic on the Xochimilco Canals in Mexico City.
Mexico. Xochimilco Canals
Black and white lantern slide of boat traffic on the Xochimilco Canals in Mexico City.
Gauges in canal
Black and white lantern slide of several people standing on a boat in the canal near water guages while another group of people stand nearby on the bank looking on.
Canal traffic at West Lake
Black and white lantern slide of canal traffic. A bridge with three arches spans the canal in the background
Canal traffic at Chining low water
Black and white lantern slide of boats traveling along the Grand Canal.
Canal traffic at Tientsin
Black and white lantern slide of heavily laden canal boats on the Grand Canal in Tientsin (Tianjin), China. Several large buildings are visible in the background.
Canal at Tientsin office
Black and white lantern slide of the Grand Canal passing under a railway bridge near the Grand Canal Improvement Board office in Tientsin (Tianjin), China. Boat traffic passes under the bridge.
Canal at rail crossing
Black and white lantern slide of the Grand Canal passing under a railway bridge.
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 spillway of masonry with earth fill
Black and white lantern slide of a dry canal spillway, filled with a layer of bricks.
Chinese canal locks double control gates
Black and white lantern slide of a Chinese canal lock with two gates.
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.
Diagram of modern locks
Black and white lantern slide of a hand-drawn sketch diagram of canal lock systems.
Wei Hu locks and breakwater walls
Black and white lantern slide of a breakwater structure near a canal lock at Wei Hu, China.
Summit level silt removed
Black and white lantern slide of a line of boats traveling along a forked canal.
Dry bed of canal through village
Black and white lantern slide of a dry canal bed running through a Chinese village.
Canal boat traffic at village--low water cultivation
Black and white lantern slide of fields being cultivated along the low waters of the canal. Several boats travel along the water near the village in the background.