Navigation sur le Niger, No. 2

Title: Navigation sur le Niger, No. 2
Translated Title: 
Navigation on the Niger No. 2
On the river barge. During flooding seasons, the river invades vast plains that are covered with grasses called "bourgon". When the bourgon becomes really compact, the area becomes a moving prairie. The barge would even have difficulties passing through. The marigots are lateral canals that are at the time filled with water. During times when the water is low, it becomes necessary to deepen the canals. The scarcity of water flow requires the building of sand fortifications so that water can accumulate behind the temporary dams. The last obstacles cannot be surmounted with anything less than the maximum degree of effort.
Series Title: 
Navigation sur le Niger
Translated Series Title: 
Navigation on the Niger
Series Subtitle: 
Navigation on the Niger,