16 GEOLOGY AND GOLD DEPOSITS OF THE CRIPPLE CREEK DISTRICT. 
Hills, Fred. The official manual of the Cripple Creek district, vol. 1. Colorado Springs, 1900. 
A useful compilation giving the organization, holdings, and equipment of each mining company in the 
district. 
Hills, Victor G. Water record of mines at Cripple Creek, Colorado. Engineering and Mining Journal, vol. 
76, 1903, p. 117. 
A record of 39 mines in tabular form. 
Hills, Victor G. Water in the mines of Cripple Creek. Engineering and Mining Journal, vol. 76, 1903, 
pp. 19.5-197. 
Concludes from the study of carefully collected data that, from a practical standpoint, the mines do not 
have a common water level, and that pumping in one mine does not necessarily lower the water in a 
neighboring mine. 
Knight, F. C. A suspected new mineral from Cripple Creek. Colorado Scientific Society, Proceedings, vol. 
5, 1894-1896, pp. 66-71. 
Concludes from chemical studies that in the oxidation of calaverite a part of the tellurium may combine 
with iron to form a tellurite. 
Liebenam, W. A. Der Cripple Creek Golddistrikt, seine Entdeckung, Entwicklung, Geologie und Zukunft. 
Berg- und huttenmannische Zeitung, vol. 63, 1904, pp. 2-5, 29-32, 57-60, 89-92, 117-121, 161-164. 
An extended account of the district, for the most part a compilation, with rather slight acknowledg¬ 
ment, from writings of Cross, Penrose, and Rickard. 
Lindgren, W. Metasomatic processes in fissure veins. Transactions American Institute of Mining Engineers, 
vol. 30, 1901, pp. 612, 630-631, 654-657. 
The first recognition of adularia (valencianite) as a vein mineral at Cripple Creek. 
Lindgren, W., and Ransome, F. L. Report of progress in the geological resurvey of the Cripple Creek district, 
Colorado. Bull. U. S. Geol. Survey No. 254, 1904. 
A brief preliminary statement of results. 
Mathews, E. B. The granites of Pikes Peak, Colorado. Geological Society of America* Bulletin, vol. 6, 
1895, pp. 471-473. 
A petrographical study of the granitic rocks of the Cripple Creek region. 
Mathews, E. B. The granitic rocks of the Pikes Peak quadrangle. Journal of Geology, vol. 8, 1900, pp. 
214-240. 
A detailed petrological study of the granites of the Cripple Creek region. Four types are distinguished, 
three of which are recognized as occurring in the Cripple Creek district. 
Myers, W. S. Quoted in “On krennerite from Cripple Creek, Colorado,” by Albert H. Chester. American 
Journal of Science, 4th ser., vol. 5, 1898, pp. 375-377. 
A chemical analysis of material from the Independence mine. 
Palaciie, Charles. Notes on tellurides from Colorado. American Journal of Science, 4th ser., vol. 10, 1900, 
pp. 419-427. Also a German translation in Zeitschrift fur Krystallographie und Mineralogie, vol. 34, 
1901. 
Chemical and crystallographic study of crystals from two localities in the Cripple Creek district proves 
them to be sylvanite. It is shown that the supposed new mineral goldschmidtite is really sylvanite. 
Pearce, Richard. The mode of occurrence of gold in the ores of the Cripple Creek district. Colorado Scien¬ 
tific Society, Proceedings, vol. 5, 1894-1896, pp. 5-10. 
Shows that the gold, prior to oxidation, occurs as a telluride, probably as sylvanite. Tests of various 
samples of oxidized ore indicate that oxidation, while setting free the gold, increases the ratio of 
tellurium to gold in the ore. 
Pearce, Richard. The occurrence of gold in the ores of the Cripple Creek district. Engineering and Mining 
Journal, vol. 57, 1894, p. 271. (Abstract of a paper read before the Colorado Scientific Society.) 
Shows that the usual ratio of gold to silver in the Cripple Creek ores corresponds to the composition of 
sylvanite rather than to that of krennerite or calaverite. 
Pearce, Richard. Further notes on Cripple Creek-ores. Colorado Scientific Society, Proceedings, vol. 5, 
1894-1896, pp. 11-16. 
Points out that tellurium, in oxidized form, is always present with gold in the oxidized ore, and usually 
in much greater proportion than in the unoxidized ore. It is concluded that part of the gold and most 
of the silver originally present in the sylvanite is removed in solution during oxidation. 
