282 EEPOET UNITED STATES GEOLOGICAL SURVEY. 



coated with a hard sugary-looking coating of silica, beneath which the 

 fiber of the wood had been converted into a pure white pulp resembling 

 the pulp seen in paper-mills. The water from the Goral Spring pours 

 into the next one, No. 3. 



Kos. 3 and 4. Three Crater Spring. — This is an expansion of the water- 

 way from the Coral Spring, and in the shallow basin thus formed there 

 are three principal spring openings, besidesthree orfourminer ones. The 

 basin is almost square at the corners and measures 26i by 26i} feet. It 

 is greenish yellow in color and the spring openings are white. The 

 temperatures in the latter are 160° F. in the opening nearest the base of 

 the hill and the outlets, 151° F. in the central orifice, and 179° F. in the 

 one to the left, which has a scalloped border. There are two main out- 

 lets; the one nearest the hills passes to the left of spring Xo. 5, and 

 spreads out on the terraces at springs No. 7 and No. 8. This is lemon 

 yellow in color, while the other is deep red, and passes to the right of 

 No. 5, and gradually spreads out on the terraces, turning to the right. 

 These terraces are composed of shallow basins with crenulated edges. 

 They are stained red and gray, and reach almost to the edge of the river 

 from springs 5, 7, and 8. 



No. 5. In the table there are two temperatures given. The first one 

 (148° F.) is the temperature of the spring, while the other (16o<^ F.) is 

 the temperature in a hole just back of it, near the right-hand water out- 

 let of No. 3. 



Nos. 6, 7, and 8 do not deserve special mention. 



No. 9. Y^ave Spring. — This is a small circular pool with a creamy 

 white basin. It receives water from Nos. 3 and 5 and pulsates with oc- 

 casional spurts of water. No. 1. is on the water-way leading from No. 9. 



No. 10. In the center of a yellow basin measuring 8 by 9 feet is a gray 

 hole 2 feet diameter and 3 feet deep, from which the water spouts irreg- 

 ularly to the height of 3 or 4 feet; the surface temperature is 199° F., and 

 at 2 feet below the surface it is 206°. The outlet is beautifally colored 

 with red and yellow, which grows less vivid as it recedes from the spring. 



No. 11. Flalie Spring was named from the flaky masses of broken 

 deposit seen at the upper end of the spring; a light blue pool is at one 

 side of the basin. 



Nos. 12 and 13. Blue Glass Spring. — This spring was named from the 

 color of the water in the deep pool at one end of it. The entire basin 

 measures 39 by 12 feet. At the lower end is a circular white hole 5^ 

 by 6 feet, which is the upper end of a white velvety- coated funnel; it is 

 nearly 9 feet deep, and a quiet spring, with a temperature of 1G8° F. at the 

 surface and 198J° F. seven feet below. At the opposite end is a cavern- 

 like spring, or pool, of a deep-blue color. It measures 12 by 8 feet, and 

 is 9 or 10 feet deep. Its surface temperature is 196° F. and at 8 feet helow 

 it is 199^-0 F. It is quiet, and separated from the rest of the basin by a 

 fringe of geyserite. From the latter to the spring first described there 

 extends a shallow grey- white basin from 2 to 3 inches deptD. This basin 

 extends around the funnel-shaped orifice. This spring probably belongs 

 to the class of quiet springs, as there is no evidence of its being a geyser, 

 nor did we ever see it even boiling. 



No. 14 (Plate XXXIII a) in an oval spring 9 feet long by 5 feet wide 

 and 4^ feet deep. It has a raised yellow beaded rim of 6 inches to a foot 

 height, and is constantly agitated, spurting to a foot or two above the 

 crater. The surface temperature is 197° F., and at 3 feet below the sur- 

 face is 201O F. It is some distance back of No. 12, to which the over- 

 flow pours over a terraced water-way. 



