HOT SPRINGS, ARKANSAS. 



37 



No. 6. — Boiler House spring. 



[Situated at base of Hot Springs Mountain in cellar of Arlington Hotel . Sample for mineral analysis 

 sis was taken January 9, 1901. Temperature on November 13, 1900, was 57.5° C, and on January 8, 1901, 

 was 5S.3° C] 



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

 Nitrogen, 8.10; oxygen, 3.06; carbon dioxide (free), 10.84; carbon dioxide (set free 

 from bi carbonates on evaporating to dryness), 29.46; hydrogen sulphide, none. 



Formula and name. 



Si0 2 (silica) 



S0 4 (sulphuric acid radicle) . . . 

 HCO3 (bicarbonic acid radicle) 



N0 3 ( nitric acid radicle) 



NOo (nitrous acid radicle) 



P0 4 (phosphoric acid radicle). 

 BOo (metaboric acid radicle) . . 



As0 4 (arsenic acid radicle) 



CI (chlorine) 



Br (bromine) 



I (iodine) 



Kf> (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. 



Per cent of 

 total 



inorganic 

 material in 



solution. 



Amount of 

 water used 



for each 

 determina- 

 tion. 



44.51 



8.50 



163. 50 



.75 



.0013 



Trace. 



(a) 



None. 

 2.75 

 Trace. 

 Trace. 



.21 



Trace. 



46.25 

 4.88 

 1.68 

 4.50 

 Trace. 

 .025 



16.04 



3.06 



58.91 



.27 



c.c. 



8,000 



4,000 



100 



100 



100 





2,000 





3,000 





3,000 



800 



3,200 



.99 





3,200 



2,000 



2,000 

 2,000 

 2,000 

 4,000 

 4,000 

 4,000 

 500 



.07 



16.66 



1.76 



.61 



1.62 



.'6i" 



277. 5563 



100 







202 

 .001 

 .70 





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 2 S0 4 (sodium sulphate) 



MgS0 4 (magnesium sulphate) 



NaBO-2 (sodium metaborate) 



Ca 3 ( P0 4 ) 2 (calcium phosphate) 



Na NO3 ( sodium nitrate) 



NaXOo (sodium nitrite) 



Mgi HC0 3 ) 2 (magnesium bicarbonate) 



Ca(HCO s ) 2 (calcium bicarbonate) 



MnfHCOjjo (manganous bicarbonate) 



A I^q;4( ferric oxide and alumina) 



CaSiOo ( calcium silicate) 



Si0 2 (silica) 



Total 



Parts per 

 million. 



0.074 



Trace. 

 3.20 

 1.33 



Trace. 



Trace. 



11.41 

 .99 



(a) 



Trace. 



1.03 



.002 



28.18 



185. 90 



Trace. 



.30 



1.02 



43.98 



Per cent of 



total 



inorganic 



material in 



solution. 



277. 416 



0.03 



1.15 

 .48 



4.11 

 .36 



.37 



10.16 

 67.01 



.11 



.37 

 15.85 



100 



a Small amount. 



