68 



HOT SPRINGS, ARKANSAS. 



No. 37. — Stevens springs. 



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

 Temperature on December 20, 1900, was 52.9° C, and on January 8, 1901, was 52.0° C] 



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

 Nitrogen, 10.84; oxygen, 2.17; carbon dioxide (free), 13.64; carbon dioxide (set free 

 from bicarbonates on evaporating to dryness), 30.58; bydrogen sulphide, none. 



Formula and name. 



Parts per 

 million. 



Per cent of 



total 



inorganic 



material in 



solution. 



Amount of 

 water used 



for each 

 determina- 

 tion. 



Si0 2 (silica) 



S0 4 (sulphuric acid radicle) . .. 

 HCO3 (bicarbonic acid radicle) 



N0 3 (nitric acid radicle) 



NO» (nitrous acid radicle) 



PO4 (phosphoric acid radicle) . . 

 BOo (metaboric acid radicle) . . . 



ASO4 (arsenic acid radicle) 



CI (chlorine) 



Br (bromine) 



I (iodine) 



Vjl (iron and aluminum) 



Mn (manganese) 



Ca (calcium) 



Mg (magnesium) 



K (potassium ) 



Na (sodium) 



Li (lithium) 



NH4 (ammonium) 



Total 



Total solids 



Albuminoid ammonia 



Oxygen required 



46.65 

 15.78 

 169. 60 

 Trace. 

 .0013 



Trace. 



( a ) 



None. 



2.67 



Trace. 



Trace. 



.14 



.08 

 49.93 

 5.07 

 1.76 

 5.28 

 Trace. 



.036 



296. 9973 



213 



.013 

 .40 



15.70 



5.31 



57.12 



.90 



.05 



.03 



16.80 



1.71 



.59 



1.78 



.01 



100 



c. 



8,000 



4,000 

 100 

 100 

 100 



2,000 



000 

 000 

 600 

 400 

 400 



9,000 



9,000 

 2,000 

 2,000 

 4,000 

 4,000 

 4,000 

 500 



100 

 500 

 200 



» Small amount. 

 HYPOTHETICAL FORM OF COMBINATION. 



Formula and name. 



NH 4 C1 (ammonium chloride) 



LiCl (lithium chloride) 



KC1 (potassium chloride) 



NaCl (sodium chloride) 



KBr (potassium bromide) 



KI (potassium iodide) 



Na«S04 (sodium sulphate) 



MgS04 (magnesium sulphate) 



NaBO.i (sodium metaborate) 



Ca 3 (P6 4 )o (calcium phosphate) 



NaN0 3 (sodium nitrate) 



NaN0 2 (sodium nitrite) 



Mg(HC0 3 )o (magnesium bicarbonate) 



Al O 1 (^ err i c oxide aud alumina) 



Mh 3 4 (mangano-manganic oxide) . . . 



CaSi0 3 (calcium silicate) 



SiOo (silica) , 



Total 



Parts per 

 million. 



0.107 

 Trace. 

 3.35 

 1.67 

 Trace. 

 Trace. 

 14.25 

 7.71 

 (.) 



Trace. 

 Trace, 



.0020 

 21. 13 

 201. 81 



.20 



.11 



.29 

 46.50 



Per cent of 

 total 



inorganic 

 material in 



solution. 



297. 1290 



0.04 



.13 

 .56 



4.80 

 2.59 



7.11 



67. 92 



.07 



.04 



.09 



15.65 



100 



a Small amount. 



