BARTOW : SANITARY CHEMICAL WATER ANALYSES. 



101 



Taiile I. — Conclude (/. 



In table I the variation of the constituents with the height 

 of the water is quite striking. When the first analysis was 

 made, February 4, 1898, no water was flowing over the dam. 

 This stage was again reached on August 15 and December 15 of 

 the same year. Analyses made in the interim show the soluble 

 solids, chlorine and hardness to be lower, and insoluble solids 

 to be higher. Nitrogen in all its forms increases with the in^ 

 crease in the height of the water. The variation of the chlo- 

 rine is especially noticeable. With the gauge at zero, there 

 were 114 parts of chlorine ; with the gauge at five feet, there 

 were only 14 parts of chlorine ; and the following week, though 



