r to the Gulf, which holds in solution nearly 20 per cent. of mud and sand.
The river has three channels to the sea—the Southwest Pass, the Passe l'outre, and the South Pass—the first carrying out about 50 per cent. of its water, the second 40 per cent., and the third 10 per cent. There is a bar at the mouth of each pass, and eachrk the path of the jetties; then willows fastened together in enormous mattresses were sunk, and these filled in with stones and gravel.
This work was done on the South Pass, the narrowest of the three channels of the Mississippi delta.
Captain Eads wished to try his experiment on the Southwest Pass, the deepest and widest channel, but Congress would not permit him to do so. The work of making the South Pass jetties was completed July 9, 1879.
A channel 30 feet deep, with a minimum width of 45 feet, had been made from the river to deep water in the Gulf. Five and a half million cubic yards of earth had been removed, mainly by the action of the strong cur