MINERALS. 307 
SCORODITE. 
An incrustation on hot-spring deposits, from Joseph's Coat Spring, Broad Creek, 
Yellowstone Park. Analyzed by J. E. Whitfield and described in Bull. 55. 
BINDHEIMITE. 
From a claim near the Bertrand mine, Secret Canyon, Nevada. Analyzed by 
W. F Hillebrand and described in Bull. 20. Sp. gr., 5.01 at 19°, after correction 
for admixed quartz and cerussite. 
XV. SULPHATES AND TELLURITES. 
ANHYDRITE. 
From Newhouse, Utah. Approximate analysis by W. T. Schaller. 
GYPSUM. 
A. From Hillsboro, New Brunswick. Analysis by George Steiger. 
B. From the Western Plaster Works, Alabaster, Michigan. Analysis by George 
Steiger. 
C. From east of Cascade, Black Hills, South Dakota. Analysis by Steiger. 
D. From Rico-Aspen mine, Rico district, Colorado. Analysis by W. F. Hillebrand. 
E, F. From Nephi, Utah. Analyses by E. T. Allen. Some anhydrite must be 
present. 
PTESENE! | -ccain einrase aiccciersig. ci 
100. 42 | 99.96 99. 54 
