HUT SPRINGS, ARKANSAS. 



35 



No. 4. — Cliff Spring. 



[Situated at the base of Hot Springs Mountain under wall of Arlington Hotel. Sample for mineral 

 analysis was taken January 9, 1901. Temperature on November 10, 1900, was 55.9° C, and on January 

 8, 1901, was 52.1° C. This spring could not be reached, so the temperature was taken about 8 feet from 

 the spring.] 



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

 Nitrogen, 7.85; oxygen, 3.36; carbon dioxide (free), 12.52; carbon dioxide (set free 

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



Formula and name. 



SiOo (silica) 



S0 4 ~ (sulphuric acid radicle) 



HC0 3 (bicarbonic acid radicle) 



N0 3 (nitric acid radicle) 



NOo (nitrous acid radicle) 



PO4 (phosphoric acid radicle).. 

 BO., (metaboric acid radicle) . . . 



As0 4 (arsenic acid radicle) 



CI (chlorine) 



Br (bromine) 



I (iodine). 



Kf (iron and aluminum). 



1/ 

 Mn (manganesej.. 



Ca (calcium) 



Mg (magnesium) .. 



K 1 potassium) 



Na (sodium) 



Li (lithium) 



NH 4 (ammonium) . 



Total 



Total solids 



Albuminoid ammonia 

 Oxygen required 



Parts per 

 million. 



43.55 



8.63 



160. 50 



.44 



.0013 



Trace. 



(•) 



None. 



2.38 



Trace. 



Trace. 



.35 



.22 

 44.61 

 4.68 

 2.01 

 4.48 

 Trace. 



.043 



Per cent of 



total 



inorganic 



material in 



solution. 



271.8943 



197 



.25 



16.03 



3.17 



59.03 



.16 



.87 



.13 



.08 



16.40 



1.72 



.74 

 1.65 



".'62 



100 



Amount of 

 water used 



for each 

 determina- 

 tion. 



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»S04 (sodium sulphate) 



MgS0 4 (magnesium sulphate) 



NaB0 2 (sodium metaborate) 



Ca 3 (P0 4 )o (calcium phosphate) 



NaNO :i (sodium nitrate) 



NaNOo (sodium nitrite) 



Mgi HC0 3 ) 2 (magnesium bicarbonate) 



Ca(HCOv) 2 (calcium bicarbonate) 



Fe(HC03>2 (ferrous bicarbonate) 



Mn(HC0 3 ) _ 2 (manganous bicarbonate) 

 Si0 2 (silica) 



Total 



Parts per 

 million. 



0.128 

 Trace. 

 3.83 

 .77 

 Trace. 

 Trace. 

 12.40 

 .31 



(») 



Trace. 



.60 



.002 



27. 82 



180. 67 



1.11 



.71 



43.55 



Per cent of 

 total 



inorganic 

 material in 



solution. 



271.900 



0.05 



1.41 

 .28 



4.56 

 .11 



.22 



10. 23 



66.45 



.41 



.26 



16.02 



100 



a Small amount. 



