HOT SPRINGS, ARKANSAS. 



53 



No. 22. — Superior spring (south). 



[Situated on the side of Hot Springs Mountain. Sample for mineral analysis was taken January 'J, 

 1901. Temperature on December 5, 1900, was 57.1° C, and on January 8, 1901, was 56.5° C] 



Gases (number of cubic centimeters per liter at 0° C and 760 mm. pressure).— 

 Xitrogen, 8.49; oxygen, 3.04; carbon dioxide (free), 9.15; carbon dioxide (set free 

 from bicarbonates on evaporating to dryness), 29.47; hydrogen sulphide, none. 



Formula and name. 



SiOo (silica) 



S0 4 (sulphuric acid radicle) . . . 

 HC0 3 (bicarbonic acid radicle) 



N0 3 (nitric acid radicle) 



N0 2 (nitrous acid radicle) 



P0 4 (phosphoric acid radicle) . 

 B0 2 (meta boric acid radicle) . . 



As0 4 (arsenic acid radicle) 



CI ( chlorine) 



Br (bromine) 



I (iodine) 



\f • (iron and aluminum) 



Mn (manganese) 



Ca (calcium) 



Mg (magnesium) 



K (potassium) 



Na (sodium) 



LI (lithium) 



NH 4 (ammonium) 



Total 



Total solids 



Albuminoid ammonia 



Oxygen required , 



Parts per 

 million. 



44.79 

 8.03 

 162 

 Trace. 

 .0055 

 Trace. 



(a) 



None. 

 2.43 

 Trace. 

 Trace. 



.09 



.18 

 44.73 

 4.76 

 1.64 

 4.67 

 Trace. 



.025 



273. 3505 



194. 50 

 .022 

 .35 



Per cent of 

 total 



inorganic 

 material in 



solution. 



16.39 



2.94 



59.26 



.89 



.03 



.07 



16.36 



1.74 



.60 

 1.71 



.01 



100 



Amount of 

 water used 



for each 

 determina- 

 tion. 



c. c. 



10, 000 



4,000 



100 



100 



100 



2, 000 



3, 500 



3, 500 



700 



8,000 



8,000 



4,000 



4,000 

 4,000 

 ■ 4,000 

 4,000 

 4,000 

 4,000 

 500 



200 

 500 

 200 



a Small amount. 

 HYPOTHETICAL FORM OF COMBINATION. 



Formula and name. 



XH 4 C1 (ammonium chloride) 



LiCl (lithium chloride) 



KC1 (potassium chloride) 



NaCl (sodium chloride) 



KBr (potassium bromide) 



KI ( potassium iodide) 



Na 2 S0 4 (sodium sulphate) 



NaB0 2 ;(sodium metaborate) 



Ca 3 ( P0 4 ; 2 (calcium phosphate) 



XaX0 3 (sodium nitrate) 



NaNOo (sodium nitrite) 



Na | HCO3) sodium bicarbonate) 



Mgi HC0 3 ) 2 (magnesium bicarbonate) 



Cal HC0 3 ) 2 (calcium bicarbonate) 



Fe HC0 3 ) 2 (ferrous bicarbonate) 



Mn(HC0 3 ) 2 (manganous bicarbonate) 

 SiC 2 ( silica) 



Total 



Parts per 

 million. 



0.074 

 Trace. 

 3.13 

 1.47 

 Trace. 

 Trace. 

 11.88 



(a) 



Trace. 

 Trace. 



.0083 



.88 



28.66 



181. 56 



.29 



.58 

 44.79 



273. 3223 



Per cent of 



total 



inorganic 



material in 



solution. 



0.02 



1.14 

 .54 



4.35 



.32 



10.47 



66.42 



.16 



.21 



16.37 



100 



a Small amount. 



