50 



HOT SPRINGS, ARKANSAS. 



No. 19. — Sumpter zprhuj. 



[Situated at the base of Hot .Springs Mountain under wall of a reservoir. Sample for mineral 

 analysis was taken January 9. 1901. Temperature on December 1. 1900. was 56.4° C, and on January s, 

 1901, was 56.1° C. This spring could not be reached, so the temperature was taken about 20 feet from 

 the spring.] 



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

 Nitrogen, 8.20; oxygen, 3.25; carbon dioxide (free), 16.44; carbon dioxide (set free 

 from bicarbonates on evaporating to dryness), 28.90; hydrogen sulphide, none. 



Formula and name. 



Si0 2 (silica) 



SO4 (sulphuric acid radicle) 



HCO3 (bicarbonic acid radicle). 



NO3 (nitric acid radicle) 



N0 2 (nitrous acid radicle) 



PO4 (phosphoric acid radicle).. 

 BO» imetaboric acid radicle) ... 



As6 4 (arsenic acid radicle) 



CI (chlorine) 



Br (bromine) 



I ( iodine ) 



Parts per 

 million. 



~, V (iron and aluminum). 



Mn (manganese) 



Ca (calcium) 



Mg (magnesium) 



K (potassium ) 



Na (sodium) 



Li (lithium) 



XH 4 (ammonium) 



44.35 



8.75 



159. 00 



1.33 



.0010 

 Trace. 



(») 



None. 

 2.57 

 Trace. 

 Trace. 



.09 



Trace. 



44. 72 

 4.71 

 2.00 

 4.58 

 Trace. 

 .011 



Per cent of 



total 



inorganic 



material in 



solution. 



Total 



272. 1120 



Total solids 



Albuminoid ammonia. 

 Oxygen required 



192. 50 

 None. 

 .30 



16.30 



3.21 



58.45 



.49 



.94 



.03 



Amount of 

 water used 

 for each 

 determina- 

 tion. 



16.43 

 1.77 



.70 

 1.68 



100 



c. c. 



' 16, 000 



4,000 



100 



100 



100 



2, 000 



3,500 

 3,500 

 700 

 8, 000 

 8,000 



4,000 



9,000 

 4,000 

 4,000 

 4,000 

 4,000 

 4,000 

 500 



200 

 500 

 200 



a Small amount. 

 HYPOTHETICAL FORM OF COMBINATION. 



Formula and name. 



NH,C1 (ammonium chloride) 



LiCl (lithium chloride) 



KC1 (potassium chloride) 



NaCl (sodium chloride) 



KBr (potassium bromide) -. 



KI (potassium iodide) 



Na. ; S0 4 (sodium sulphate) 



MgS0 4 (magnesium sulphate) 



NaBO.i (sodium metaborate) 



0%! P0 4 ) 2 (calcium phosphate) 



NaN0 3 (sodium nitrate) 



NaNOo (sodium nitrite) 



Mg(HC0 3 )o (magnesium bicarbonate) . 



Ca(HC0 3 ) 2 "(calcium bicarbonate) 



Fe(HC0 3 ) 2 (ferrous bicarbonate) 



Mn(HC0 3 ).> (manganous bicarbonate). 

 SiOo (silica") 



Parts per 

 million. 



Total. 



0.033 

 Trace. 

 3.81 

 1.12 

 Trace. 

 Trace. 

 11.13 

 1.54 



C) 



Trace. 

 1.82 

 .0015 

 26.49 

 181.12 

 .29 

 Trace. 

 44. 35 



271.7045 



Per cent of 



total 



inorganic 



material in 



solution. 



0.01 



.40 

 .41 



4.09 

 .57 



.67 



9.75 



66.67 



.11 



16.32 



100 



a Small amount. 



