23 



TABLE 5. 



IVreentages by voliiino and by weight of the sediment in 

 the water in Calcasieu Pass dui-in-j; .Alay and June, 190(3: 



Date of Percent, by weiglit Percent. l)y volume 

 oaniination. of sediment. of sediment. 



May 10 1.7-i 8.93 



May 12 2.14 10.23 



May VA 1.87 9.42 



Mav 15 2.29 14.37 



May 17 2.01 11.03 



May 18 1.68 8.74 



May 20 1.52 7.63 



May 22 1.63 8.27 



:^rav 25 1.27 6.46 



:\ray 28 0.48 2.28 



June 1 0.25 1.13 



June 5 0.09 0.27 



Although it was impossible to determine the volume of wa- 

 ter flowing in the river, and thus get an approximate estimate 

 of the amount of sediment brought down into the gulf in a given 

 period of time, the fact that the current ran down most of the 

 time, that its velocity varied from two to three and one-half 

 miles per hour, and that the narrowest place between the jetties 

 is three hundred and twenty-five yards across, may help one to 

 from a conception of the amount of silt brought down during a 

 protracted freshet, when the water contains from six to ten parts 

 01 sediment. 



The area over which the sediment Avas depositei could be 

 traced along the shore by a deposit of soft mud left on the usually 

 bare beach after each high tide, while the seaward limit of 

 deposition was taken to be at that point where the water changed 

 in appearance from the muddy water of the river to the clear 

 blue water of the gulf. The currents in the gulf due to wind, 

 as well as the regular tidal currents, made the limits of this 

 area very variable from day to day. However, the limits may 



