62 BIBLIOGRAPHY AND INDEX OF N. A. GEOLOGY, [bull. 146. 
36i Osborn (Henry Fairchild). Fossil mammals of the Uinta Basin. 
Expedition of 1894. 
Am. Mus. Nat. Hist., Bull., vol. vii, pp. 71-106, tigs. 1-17. 
Gives a description of the occurrence of the fossils and the character 
of the formations in the Uinta Basin, in northeastern Utah, hy Mr. O. 
A. Peterson. In a table shows the succession of species in the three 
faunal levels and describes the fossils collected, including several new- 
species. 
362 and Earle (Charles). Fossil mammals of the Pnerco beds. 
Am. Mus. Nat. Hist., Bull., vol. vii, pp. 1-70, figs. 1-21. 
The fossils described were found in the San Juan region of New Mexico. 
Quotes from Dr. Wortman's field notes describing their occurrence. 
Gives in tabular form a synopsis and vertical distribution of the Puerco 
fauna, and describes the characters of the fossils collected, including a 
number of new species. 
363 and Wortman (J. L.). Perissodactyls of the Lower Miocene 
White River beds [South Dakota]. 
Am. Mus. Nat. Hist., Bull., vol. vii, pp. 343-375, pis. viii-xi, figs. 1-12. 
Gives a list of the species described and the lithologic character and 
thickness of the beds in which they were foundj, Describes the fossils 
collected, including a number of new species. 
364 Packard (R. L.). Note on a blue mineral, supposed to be ultra- 
marine, from Silver City, New Mexico. 
U. S. Nat. Mus., Proc, vol. xvii, pp. 19-20. 
Gives a brief description of its occurrence and a chemical analysis of 
the material. 
365 On an occurrence of copper in western Idaho. 
Am. Jour. Sci., 3d ser., vol. 1, pp. 298-300. 
Describes the occurrence of copper in the mountains separating Oregon 
from Idaho and the petrographic and chemical characters of the diorite 
with which it is associated. 
366 Penfield (S. L.). Partial report on calaverite crystals from Cripple 
Creek, Colorado. 
U. S. Geol. Surw, lGth Ann. Kept., part ii, pp. 135-136. 
Describes the crystallographic characters of the material examined. 
367 Penrose (R. A. F.,jr.). Geology and mining industries of the 
Cripple Creek district, Colorado, Part IT. Mining geology 
of the Cripple Creek district, Colorado. 
U. S. Geol. Surv., 16th Ann. Kept., part ii, pp, 111-209, pis. iii-xiv, figs. 
2-37, with supplemental map of the Cripple Creek district. 
Gives a historical account of mining at Cripple Creek. Describes the 
mineralogic character and superficial alteration of the gold ores. Dis- 
cusses the mode of occurrence and deposition of the ores. Chapters V 
and YI contain detailed descriptions of the mines. Contains a discussion 
of the chemical characters of calaverito by W. F. Hillebrand and of its 
crystallographic characters by S. L. Penfield. 
