HOT S1 J KINGS, ARKANSAS. 



77 



No. 46. — Fordyce spring. 



[Situated at base of Hot Springs Mountain. Sample for mineral analysis taken May 19, 1901. 

 Temperature on January 6, 1901, was 51.5° C, and on January 8, 1901, was 51.5° C.J 



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

 Nitrogen, not determined; oxygen, not determined; carbon dioxide (free), not deter- 

 mined; carbon dioxide (set free from bicarbonates on evaporating to dryness), not 

 determined; hydrogen sulphide, none. 



Formula and name. 



Si0 2 (silica) 



S0 4 (sulphuric acid radicle) 



HCOj (biearbonic acid radicle) 



N0 3 (nitric acid radicle) 



N0 2 (nitrous acid radicle) 



PO4 (phosphoric acid radicle) . 

 BO? (metaboric 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. 



49.16 



8.21 



166. 50 



(,) 



.33 

 ( b ) 



None. 



2.50 



Trace. 



Trace. 



.18 



.21 



45.79 



5.06 



1.57 



5.26 



Trace. 



(a,) 



284. 77 



200 



(") 



(») 



Per cent of 



total 



inorganic 



material in 



solution. 



17. 26 



2.88 



58.47 



.12 

 "88 



.06 



.07 



16. 08 



1.78 



.55 

 1.85 



100 



Amount of 

 water used 



for each 

 determina- 

 tion. 



c. 



8,000 



4,000 



100 



2,000 

 3,000 

 3,000 

 600 

 5,400 

 5,400 



9,000 



9,000 

 2,000 

 2,000 

 4,000 

 4,000 

 4,000 



100 



• Not determined. b 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 2 S0 4 (sodium sulphate) 



NaB0 2 (sodium metaborate) 



Ca3(P04) 2 (calcium phosphate) 



NaN0 3 (sodium nitrate) 



NaNOo (sodium nitrite) 



Na(HC0 3 ) (sodium bicarbonate) 



Mg(H(X>3)2 (magnesium bicarbonate) 



Ca (HCO' j )2"(calcium bicarbonate) 



Mn(HCO-j2 (manganous bicarbonate) 



ALOl ( lerr i c oxide and alumina) 



Si6 2 (silica) 



Total 



Parts per 

 million. 



(a) 



Trace. 

 2.99 

 1.78 



Trace. 



Trace. 

 12. 15 



( b ) 

 .54 



(•) 



(a) 



2.26 



30.46 



184. 60 



.68 



.27 



49.16 



284.89 



Per cent of 



total 



inorganic 



material in 



solution. 



1.05 

 .68 



4.22 

 '.19 



.79 

 10.70 

 64.81 



.24 



.10 

 17.27 



100 



"Not determined. 



b Small amount. 



