Table 2;- Resistivities measured at 3 stations below point where 50-pound block of cattle salt was 



placed 7J\ stream for 15 minutes, A total of 16 pounds of salt w=s dissolved from the block. 

 Elapsed time is listed from introduction of s-^lt block into stream to t're last measurement 

 of resistivity at Station III, Stations were located downstream from salt point as follows; 

 Station I, 100 yards; Station II, 2 miles; and Station III, 3.5 miles. 



1/ Concentrations of salt in ppm estimated from curves in figure 1 



2/ Observations at Station II terminated in order to intercept bolt of salt at Station III 



5 



