348 



The Smithsonian Institution 



and colleagues in ' Geology of the Quicksilver Deposits of the 

 Pacific Slope.' 



** 6, Pigeon Point collections. These comprise four hun- 

 dred specimens illustrating various contact phenomena as 

 occurring at Pigeon Point, on the north shore of Lake 

 Superior, and as described by Professor W. S. Bailey in a 

 bulletin ^ of the United States Geological Survey. 



" 7. Menominee Valley and Marquette River collections. 

 These comprise two hundred and fifty-four specimens illus- 

 trative of the dynamic metamorphism of eruptive rocks as 

 described by Professor George H. Williams. ^ 



" 8. The Eureka (Nevada) collection, comprising some 

 five hundred and six specimens, rocks and ores, as studied 

 and described by Arnold, Hague, ^ Whitman Cross, and J. S. 

 Curtis."* 



"9. The Cripple Creek (Colorado) collections. These 

 comprise some eight hundred specimens of rocks and ores. 

 The material studied by Whitman Cross and R. A. F. Pen- 

 rose and described in their report on the ' Geology and 

 Mining Industry of the Cripple Creek District.'^ 



" 10. The Silver Cliff collections, comprising three hundred 

 specimens of rocks and ores. The collection upon which is 

 based the report by Whitman Cross and R. A. F. Penrose. 



" II. The Tenth Census collection of Building and Orna- 

 mental Stone comprises some three thousand specimens, 

 mainly in the form of four-inch cubes, and two thousand thin 

 sections.^ These formed the basis of the results criven in ' The 

 Collection of Building and Ornamental Stones; a Handbook 

 and Catalogue.' '^ 



1" The Empire and Sedimentary Rocks on 

 Pigeon Point, Minnesota, and their Contact 

 Phenomena." 1S93. Bulletin, No. 109. 



2 " The Greenstone Schist Areas of the Me- 

 nominee and Marquette Regions of Michi- 

 gan." 1890. Bulletin No. 62 of the United 

 States Geological Survey. 



3 Hague, Arnold. " Geology of the Eureka 

 District, Nevada, with Atlas." 1892. Mono- 

 graph XX of the United States Geological 

 Survey. 



4 Curtis, Joseph Story. " Silver-lead De- 

 posits of Eureka, Nevada, 1SS4." Monograph 

 VII of the United States Geological Survey. 



6 Sixteenth Annual Report of the United 

 States Geological Survey, Part II, 1894-95. 



6 Merrill, George P. Special Reports on 

 Petroleum, Coke, and Building Stones, Tenth 

 Census of the United States, 1880, Vol- 

 ume X. 



7 Report United States National Museum, 

 1886, page 277. 



