HOT SPRINGS, ARKANSAS. 



71 



No. 40. — W. /. Little spring. 



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

 •rature on December 31, 1900, was 48.9° C, and on January 8, 1901, was 48.9° C.j 



Tem- 



perature on 



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

 Nitrogen, 9.18; oxygen, 2.98; carbon dioxide (free), 14.20; carbon dioxide (set free 

 from bicarbonates on evaporating to dryness), 30.02; hydrogen sulphide, none. 



Formula and name. 



SiOo (silica) 



S0 4 (sulphuric acid radicle) 



HCO3 (bicarbonic acid radicle) 



N0 3 (nitric acid radicle) 



N0 2 (nitrous acid radicle) 



PO4 (phosphoric acid radicle) . 



B0 2 (metaboric acid radicle) . . . 



As6 4 (arsenic acid radicle) 



CI (chlorine) 



Br (bromine) 



I (iodine) 



Fel 



^j [-(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. 



45. 73 

 7.76 

 103. 50 

 Trace. 

 .0010 

 Trace. 



C) 



None. 

 2.67 

 Trace. 

 Trace. 



.19 



Trace. 

 45.43 

 4.96 

 1.59 

 5.00 

 Trace. 

 .008 



Per cent of 

 total 



inorganic 

 material in 



solution. 



276. 8390 



195. 00 

 .004 

 .60 



16. 52 



2.80 



59.06 



.96 



.07 



16. 41 



1.79 



.57 



1.81 



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 



9, 000 



9,000 

 2,000 

 2, 000 

 4,000 

 4, 000 

 4,000 

 500 



500 



100 

 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 S04 (sodium sulphate) 



NaB0 2 (sodium metaborate) 



Ca 3 (PC>4) 2 (calcium phosphate) 



NaN0 3 (sodium nitrate) 



NaNO.>(sodium nitrite) 



Na (H~C0 3 ) (sodium bicarbonate) 



Mg(HC0 3 ) 2 (magnesium bicarbonate). 



Ca(HC0 3 ) 2 (calcium bicarbonate) 



Mn (HC0 3 ) 2 (manganous bicarbonate) 



ALO I (f err i c oxide and alumina) 



CaSi6 3 (calcium silicate) 



Si0 2 (silica) 



Total 



Parts per 

 million. 



0.024 



Trace. 



3.03 



2.00 



Trace. 



Trace. 



11.48 



(a) 



Trace. 

 Trace. 

 .0015 

 1.79 

 29.86 

 182. 32 

 Trace. 



.27 



1.19 

 45.11 



277.0755 



Per cent of 



total 



inorganic 



material in 



solution. 



0.01 



1.09 

 .72 



4.14 



.65 

 10. 78 

 65. 80 



.10 



.43 



16. 28 



100 



» Small amount. 



