Salachi - Suiyuan. The [dyke] cut still small.GrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. Silt micro-crossbedding old river channel bank.GrayscalePendleton nitrate negativ...
Salachi - Suiyuan. Loess silt loam. Alluvial fans behind. 'Ditch-Road' Weichun.GrayscalePendleton ni...
Salachi - Suiyuan. Irrigation channel thru rock. Shiching kauman.GrayscalePendleton nitrate negative...
Salachi - Suiyuan. Cutting the dykeGrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. Cutting the dyke.GrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. Cutting the dam. Huang Ho [Yellow River] at leftGrayscalePendleton nitrate negati...
Salachi - Suiyuan. The heads works. Huang Ho [Yellow River] beyond.GrayscalePendleton nitrate negati...
Salachi - Suiyuan. The canal before cut made. Huang Ho [Yellow River] beyond Teng Kou [Dengkou] dist...
Salachi - Suiyuan. The growing stream, Huang Ho [Yellow River].GrayscalePendleton nitrate negative, ...
Salachi - Suiyuan. Across head of canal, intake quarters beyond.GrayscalePendleton nitrate negative,...
Salachi - Suiyuan. The main canal.GrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. River wash & old terrace Shiching kauman.GrayscalePendleton nitrate negative, Box...
Salachi - Suiyuan. Opening the gates.GrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. Excavating silt loam from subsoil for building.GrayscalePendleton nitrate negativ...
Salachi - Suiyuan. Intake buildings & fortifications.GrayscalePendleton nitrate negative, Box 3 of 3...
Salachi - Suiyuan. Silt micro-crossbedding old river channel bank.GrayscalePendleton nitrate negativ...
Salachi - Suiyuan. Loess silt loam. Alluvial fans behind. 'Ditch-Road' Weichun.GrayscalePendleton ni...
Salachi - Suiyuan. Irrigation channel thru rock. Shiching kauman.GrayscalePendleton nitrate negative...
Salachi - Suiyuan. Cutting the dykeGrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. Cutting the dyke.GrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. Cutting the dam. Huang Ho [Yellow River] at leftGrayscalePendleton nitrate negati...
Salachi - Suiyuan. The heads works. Huang Ho [Yellow River] beyond.GrayscalePendleton nitrate negati...
Salachi - Suiyuan. The canal before cut made. Huang Ho [Yellow River] beyond Teng Kou [Dengkou] dist...
Salachi - Suiyuan. The growing stream, Huang Ho [Yellow River].GrayscalePendleton nitrate negative, ...
Salachi - Suiyuan. Across head of canal, intake quarters beyond.GrayscalePendleton nitrate negative,...
Salachi - Suiyuan. The main canal.GrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. River wash & old terrace Shiching kauman.GrayscalePendleton nitrate negative, Box...
Salachi - Suiyuan. Opening the gates.GrayscalePendleton nitrate negative, Box 3 of 38
Salachi - Suiyuan. Excavating silt loam from subsoil for building.GrayscalePendleton nitrate negativ...
Salachi - Suiyuan. Intake buildings & fortifications.GrayscalePendleton nitrate negative, Box 3 of 3...
Salachi - Suiyuan. Silt micro-crossbedding old river channel bank.GrayscalePendleton nitrate negativ...
Salachi - Suiyuan. Loess silt loam. Alluvial fans behind. 'Ditch-Road' Weichun.GrayscalePendleton ni...
Salachi - Suiyuan. Irrigation channel thru rock. Shiching kauman.GrayscalePendleton nitrate negative...