HUT SPRINGS, ARKANSAS. 



63 



No. 32. — John W. Noble spring. 



[Situated on the side of Hot Springs Mountain. Sample for mineral analysis taken May 19, 1901. 

 Temperature on December 17, 1900, was 46° C, and on January 8, 1901, was 46.5° C] 



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

 Nitrogen, 9.10; oxygen, 3.66; carbon dioxide (free), 8.04; carbon dioxide (set free 

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



SiOo (silica) 



S0 4 (sulphuric acid radicle) . . . 



HC0 3 (biearbonie acid radicle) 



NO3 (nitric acid radicle) 



NO2 (nitrous acid radicle) 



PO4 (phosphoric acid radicle) . 

 B0 2 (metaboric acid radicle) . . 



As0 4 (arsenic acid radicle) 



CI 1 chlorine) 



Br ( bromine | 



I (iodine) 



Mn 1 manganese) 



Ca tcalcium) 



Mg 1 magnesium).. 



K (potassium) 



Xa (sodium) 



'Li (lithium) 



XH 4 (ammonium). 



Total 



Total solids 



Albuminoid ammonia. 

 Oxygen required 



Parts per 

 million. 



48.27 

 8.29 

 159 

 .34 

 .0013 

 Trace. 



(a) 



None. 

 2.50 

 Trace. 

 Trace. 



??>i iron and aluminum) .. .19 



.12 



44.75 



4.73 



1.72 



4.94 

 Trace. 

 .023 



Per cent of 



total 



inorganic 



material in 



solution. 



274. 8743 



200 



.007 

 .55 



17.56 



3.02 



57.84 



.12 



.91 



.07 



.04 



16.28 



1.72 



.63 



1.80 



.01 



100 



Amount of 

 water used 

 for each 

 determina- 

 tion. 



c. c. 



8, 000 



4,000 



100 



100 



100 



2,000 



3,000 



3,000 



600 



5, 400 



5,400 



7,500 



7,500 

 2,000 

 2,000 

 ' 4, 000 

 4,000 

 4,000 

 500 



200 

 500 

 200 



a Small amount. 

 HYPOTHETICAL FORM OP COMBINATION. 



Formula and name. 



NH4CI (ammonium chloride) 



LiCl (lithium chloride) 



KC1 (potassium chloride) 



XaC'l (sodium chloride) 



KBr (potassium bromide) 



KI ( potassium iodide) 



Xa. : S0 4 (sodium sulphate) 



NaBO-2 (sodium metaborate) 



Ca 3 (P0 4 ) 2 (calcium phosphate) 



Na N0 3 (sodium nitrate) 



XaNOo (sodium nitrite) 



Xa(HC0 3 ) (sodium bicarbonate) 



Mg(HC0 3 ) 2 (magnesium bicarbonate) 

 Ca(HC0 3 )2"(calcium bicarbonate) 



. ?-Q 3 >(ferric oxide and alumina) 



Mn :; 6 4 (mangano-manganic oxide) . . . 



CaSi0 3 (calcium silicate) 



Si0 2 (silica) 



Total 



Parts per 

 million. 



0.069 

 Trace. 



3.28 



1.47 

 Trace. 

 Trace. 

 12.27 



(a) 



Trace. 



.47 



.0019 



.93 



28.47 



178. 70 



.27 



.17 



1.83 



47. 32 



275. 2509 



Per cent of 



total 



inorganic 



material in 



solution. 



0.03 



1.19 

 .53 



4.46 



.17 



.34 



10.34 

 64.93 



.09 



.06 

 .66 



17.20 



100 



a Small amount. 



