196 University Geological Survey of Kansas. 
ments are the sanitarium and hotel, afew rods to the northeast 
of the spring, in a luxuriant grove. This sanitarium is owned 
by Dr. H. H. Swallow, and here a limited number of patients, 
especially those suffering from nervous diseases, are treated. 
One peculiarity of the Merrill spring is that it contains a con- 
siderable quantity of ammonia. In 1888 this fact gave rise to 
a special investigation by the city of Topeka. It was found to 
contain 0.246 parts in 100,000 of free ammonia, and 0.0018 
parts in 100,000 of albuminoid ammonia. From a personal in- 
spection of the locality, it was evident to the author that this 
large amount of free ammonia did not indicate any contamina- 
tion by sewage or otherwise, but that the ammonia must be a 
natural constituent of the water of this locality. This same 
fact has been observed in reference to numerous other waters in 
the Mississippi valley. 
MERRILL SPRING (NEAR CARBONDALE). 
Grams 
IONS. per liter. 
Sodiumiy(Na)...2.0. 2a ae oe eee 1.6585 
(Chilorinnin (COBY) cosccc000 0000 000c .0081 
WMileemaciionin (NYE). 555000000006 .0088 
Tron (heey ee ee ea .0006 
AM wearin (A). 0500 sone o00es .0018 
Chioring(@)) wee shee eee 1.6520 
Sulfuric acid ion (SQ4)....... » 1B2139 
Silictacidsionn(s1O32) yee .0018 
Hypothetically combined as follows : 
Grams Grains 
per liter. per gallon 
Sodiumuchiloridu(@NaC)) pease ee 2.7400 132.44 
Sodium sulfate (NacSOz).................. 1.7590 102.60 
Calciumysulfaten(CaSO) hese oe .0088 5.16 
Calcium carbonate (CaCOQOs)............... .0137 8.00 
Magnesium sulfate (MgSOu)............... .0333 19.45 
Magnesium carbonate (MgCOs)............ .0077 4.52 
ronwcanbonaten(HeCO>:) sara .0012 .70 
Alma a y((Ailo Os) ice 0 sie an ee Pens tes .0034 2.00 
Silica(Si@sle cee se te se eter eee ieee .0025 1.50 
Organiceandsvolatilenene eee eee Tae ee .0015 .89 
Traces of potassium, lithium, ammonium. 
Totalisolids:cee.) ce or eee eee eee 4.5711 BOT AS 
Analysis by Dr. Albert Merrill, St. Louis. 
