HOT SPRINGS, ARKANSAS. 



39 



No. 8. — Crystal spring. 



[Situated on the side of Hot Springs Mountain. Sample for mineral analysis was taken January 9, 

 1901. Temperature on November 16, 1900, was 35.2° C, and on January 8, 1901, was 36.2° C.j 



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

 Nitrogen, 9.73; oxygen, 4.57; carbon dioxide (free), 13.13; carbon dioxide (set free 

 from bi carbonates on evaporating to dryness), 32.21; hydrogen sulphide, none. 



Formula and name. 



Si0 2 (silica) 



SO4" (sulphuric acid radicle) ... 

 HCO3 (bicarbonic acid radicle) 



N0 3 (nitric acid radicle) 



XOo (nitrous acid radicle) 



PO4 (phosphoric acid radicle) . . 

 BOo (metaborie acid radicle) .. 



As0 4 (arsenic acid radicle) 



CI (chlorine) 



Br (bromine) 



I (iodine). 



Parts per 

 million. 



,?}(iron and aluminum) 



Mn (manganese) 



Ca (calcium) 



Mg (magnesium).. 



K (potassium) 



Na (sodium) 



Li (lithium) 



NH 4 (ammonium) . 



Total 



46.28 



7.88 



172. 60 



.22 



.0012 



Trace. 



(a) 



None. 

 2.50 

 Trace. 

 Trace. 



.28 



Trace. 

 48.35 

 4.90 

 1.80 

 4.54 

 Trace. 

 .065 



289. 4162 



Total solids 



Albuminoid ammonia. 

 Oxygen required 



207.50 

 .028 

 .65 



Per cent of 



total 

 inorganic 



Amount of 



water used 



for each 



material in determina- 



solution. 



15.99 



2.72 



59.64 



.07 



.86 



.09 



16.72 



1.70 



.62 



1.57 



.02 



100 



tion. 



c. c. 



' 8,000 



4,000 



100 



100 



100 



2,000 



3, 000 



3,000 



800 



3, 200 



3, 200 



2,000 



2,000 

 2,000 

 2,000 

 4,000 

 4,000 

 4,000 

 500 



200 

 500 

 200 



a Small amount. 

 HYPOTHETICAL FORM OF COMBINATION. 



Formula and name. 



NH4CI (ammonium chloride) 



LiCl (lithium chloride ) 



KC1 (potassium chloride) 



NaCl (sodium chloride) 



KBr (potassium bromide) 



KI (potassium iodide) 



Na._S0 4 (sodium sulphate) 



NaB0 2 (sodium metaborate) 



Ca 3 (P64) 2 (calcium phosphate) 



NaN0 3 (sodium nitrate) 



NaN0 2 (sodium nitrate) 



Na(HC0 3 ) (sodium bicarbonate) 



Mg(HC0 3 ) 2 (magnesium bicarbonate) 



Ca( HC0 3 ) 2 (calcium bicarbonate) 



Mik HC0 3 ) 2 (manganous bicarbonate) 



\? 2 0'f ^ err ' c ox ide and alumina) 



Si0 2 (silica) 



Total 



Parts per 

 million. 



0.194 



Trace. 



3.43 



1.22 



Trace. 



Trace. 



11.66 



(a) 



Trace. 



.30 



.0018 



.73 

 29.50 

 195. 82 

 Trace. 



.35 



46.28 



Per cent of 



total 



inorganic 



material in 



solution. 



289. 4858 



0.07 



1.18 

 .42 





4.03 





.10 



.25 

 10.19 

 67.65 



.12 



15.99 



100 



» Small amount. 



