GEOLOGICAL SURVEY OF THE TERRITOEIES. 



137 



Per cenl:. 



Water = - 23.48 



Sulphur 3. 23 



Silica 



Sulphuric acid 



Chlorine Trace. 



Iron oxide 



Soda 



Magnesia Trace. 



Organic matter 



26.71 

 Specific gravity 1. 800 



The object of this analysis was to determine the percentage of sulphur. 

 Silica is present in large amount. 



The group of mud and sulphur springs just south of the two springs 

 referred to above was mentioned in last year's report, but as the obser- 

 vations of this year a,re more complete, and include a large number of 

 springs, I will present this group below. 



Springs at Crater Hills. 

 General elevation above sea-level, 7,828 feet; boiling-point, 198°.2 F. 



Size of spring 



Temper- 



Temper- 



ature of 



ature of 



spring. 



air. 



1740F. 



59° F. 



176 



59 



182 



59 



186 



59 



144 



59 



IGO 



59 ■ 



168 



59 



150 



59 



160 



59 



80 



59 



148 



59 



176 



59 



180 



59 



90 



59 



162 



59 



106 



59 



182 



59 



178 



59 



108 



59 



180 



59 



170 



59 



188 



59 



180 



59 



150 



59 



184 



59 



130 



59 



170 



59 



168 



59 



184 



59 



106 



59 



154 



59 



188 



59 



160 



59 



130 



59 



162 



59 



174 



59 



128 



59 



120 



59 



106 



59 



176 



59 



146 



59 



186 



59 



168 



59 



174 



59 



178 



59 



172 



59 



90 



59 



158 



59 



170 



59 



Eemarks. 



1 r 



A collection of springs 

 covering an area of &)0 

 square "feet, and vary-! 

 lug in size from one j 

 to three inches in diam- 

 eter. 



3 feet diameter. 

 8 feet diameter. 



2 feet diameter. 

 8X 2 feet 



2X 4 feet 



10 X 3 feet 



2 feet diameter. 



The water in this collection of springs has a 

 milky hue, and the noise made by them re- 

 sembles that made by a number of pots boil- 

 ing simultaneously. 



White-sulphur spring. 



Clear spring. 



Thick greenish-mud spring. 



Tellow-mud spring in active ebullition. 



A turbid pool bubbling at the edges. 



A collection of greenish-sulphur springs, each 

 a few inches in diameter. 



This spring was called Foam Spring last year. 



Bluish muddy water. 

 \ Both the sesprings have lavender-colored mud, 

 3 and No. 2 is in active agitation. 



These springs occupy a 

 space of about 1,200 < 

 square feet. 



This collection of springs varies in size from a 

 few inches to four foot. The water in the 

 majority is of a milky hue. In others it is 

 yellow or lavender colored, and in some it is 

 transparent. 



