58 REPORT— 1889. 



Potable Water (contd.) :— 



' Temporary. 



( 



Hardness I Permanent. 

 Itc 



> Total. 



'Mineral Water : — 



Carbonate of lime (CaCO.,). 



Carbonate of magnesia (MgCOa). 



Carbonate of soda (Na^COj) (calculated from residual alkalinity after 

 boiling and filtering off precipitated CaCOa and MsCO.,'). 



Total calcium (Ca). 



Total magnesium (Mg)-. 



Total potassium (K). 



Total sodium (Na). 



Iron (ferrous) (Fe"). 

 Iron (ferric) (Fe^). 



Sulphuric radical (iSO^)._ 

 Nitric radical (NO3). 



Nitrous radical (NOj)._ 



Phosphoric radical (PO^). 



Silicic radical (SiOj). 



Chlorine (CI). 



Bromine (Br). 



Iodine (I). 



Sulphur as Sulphide (S)._ 



DISSOLVED GASES. 

 Cul'ic centimetres of Gas at 0° C, and 760 millimetres in 1 litre of water. 



Carbonic anhydride (COo). 



O-xygen (0). 



Nitrogen (N). 



Sulphuretted hydrogen (H;S)._ 



