CARBONATE ROCKS. 
201 
C. Limestone, Hunt Mountain, Bighorn district, Wyoming. Received from N. H. 
Darton. Partial analysis by Hillebrand, No. 2250. CO, calculated to satisfy bases. 
Insoluble. 
Ke 
HO at 105°... 
H20 above 105° 
(ere) 
@ Includes possible TiO2, P2Os, and Fe. 
YELLOWSTONE NATIONAL PARK. 
Travertines, tufas, and calcareous sinters. Analyses A to E reported by W. H. 
Weed in 9th Ann., p. 619. Travertines. 
A. Terrace below the hotel. 
B. Cupids Cave. 
C. Near Sulphur Spring No. 246, Mammoth Hot Springs. 
D. Extinct spring, main terrace, Mammoth Hot Springs. 
E. Ridge behind main terrace. 
Analysis C by F. A. Gooch, record No. 243; A, B, D, and E by J. E. Whitfield, 
record Nos, 240, 242, 244, 245. 
Analyses F, I, J, by F. A. Gooch, record Nos. 93, 246, 257; G, H, K, by J. E. Whit- 
field, record Nos. 239, 241, 862. ; 
F. Calcareous tufa, Mammoth Hot Springs. 
