' Chemical Composition of the Thames Water. 



U9 



To proceed with the composition of the water of the river at 

 Chelsea : the following are the results of the complete analysis 

 made at the beginning of the investigation. 



The sample was collected by myself from the Chelsea Water- 

 works Company's reservoir, at the time that it was being pumped 

 in from the middle of the river on the 14th of June, 1855. The 

 temperature of the water at the time was 62° F. (17°-5 C), that 

 of the air being 58° F. (14°-44 C). 



Table a. — Direct results of Experiments calculated in 1000 

 grains of the water. 



Table b. — Mean of the preceding calculated in grains in the 

 gallon of water. 



Suspended matter. Inorganic 



..• Organic . 



Total . 



Soluble matter. Inorganic 



Organic 

 Total . 



Lime 



Chlorine 



Sulphuric acid . 



Alkaline chlorides 



Potassium . . 



Sodium . . . 



Silica, alumina, and oxide of iron 



Phosphoric acid . . 



Ammonia (as carbonate 



38-107 



8-873 

 46-980 



30-690 



1-036 



31-726 



7-5737 

 1-1205 

 5-0356 

 3-1838 

 11-815 



1-884 



3-225 



1-300 



trace 



0-033 



