EABTON.] 



NORTH AMERICAN (3eOLOGY. 



547 



Juratrias— Continued. 

 Rocky Mountain Ehgion— Cont'd. 



1890. Macfarlane's Railway Guide, 



Button, Eldridge, Emmons, 

 Hague, Pumpelly, Scott. 



Spanish Peaks region. Hills. 



Displacements in Grand Can- 

 yon, Walcott. 



Warren's Geography, Brewer. 



North American Mesozoic, 

 White, C. A. 



1891. Perry Park, Col., Cannon. 

 Triassic plants from New Mex- 

 ico, Knowltou. 



Coal fields of Montana, Weed. 



Geological horizons as deter- 

 mined by vertebrate fossils. 

 Marsh. 



Pliint-bearing beds of American 

 Trias, Ward, L. F. 



Report of Mesozoic, division in- 

 vertebrate paleontology, 

 United States Geological Sur- 

 vey, White, C. A. 

 California. 



1849. United States exploring expe- 



dition, Dana, J. D. 

 Notes on California gold re- 

 gion, Lyman, C. S. 



1850. Reconnaissance from the Mis- 



sissippi to Los Angeles, Cal., 

 Marcou, J. 



1851. Geology and resources of Cali- 



fornia, Tyson, P. T. 



1853. Geologic map of United States, 



etc., Marcou, J. 



1854. Preliminary report of survey 



in California, Blake. 



1855. Geology of route to Pacific 



Ocean in California and Ore- 

 gon, Newberry. 

 Geology of Coast mountains, 

 etc., Cal,, Trask. 



1856. Report upon route to the Pa- 



cific in California, Blake. 

 1858. Geology of North America, 



Marcou, J. 

 1861. Report on Colorado River,New- 



berry. 



1864. Fossiliferous rocks of Califor- 



nia, Whitney, J. D. 



1865. Change of level in Green Moun- 



tains, Scott, W. H. 

 Fossils from aurifenous slates 

 of California, Meek. 



Juratrias — Continued. 

 C ALiroRNi A — C on tin ued. 



1865. Geology of California, field 



work, 1860-1865, Whitney, 

 J.D. 

 Le California, Friguet. 



1866. Constitution g^ologique et mi- 



niere de la California, Fri- 

 guet. 



Age of gold rocks of the Pacific 

 Coast, Brewer. 



Whitney's Geology of Califor- 

 nia, Brewer. 



Recent developments of survey 

 of California, Whitney, J. D. 



Faune primordiale dans le Pays 

 de Galles et la g^ologie cali- 

 fornienne, Marcou, J. 



1867. Silver and gold in foothills of 



Sierra Nevada, Sillimau. 

 Grass Valley gold district, Sil- 

 liman. 



1868. Age of gold rocks of California, 



Brewer. 



Salt Spring Valley region, Ca- 

 laveras County, Cal., Good- 

 year. 



Carboniferous age of gold rocks 

 of California, Blake, W. P. 



Principles of the natural sys- 

 tem of volcanic rocks, Richt- 

 hofen. 



Mittheilungen von der West 

 Kiiste Nord-Amerikas, Richt- 

 hofen. 



1869. Chemical geology of gold fields 



of California, Phillips. 

 Alter der goldfiihrenden Giinge, 

 etc., Richthofen. 



1870. Goldlagerstiitten Califomiens, 



Burkart. 

 Comstock lode. King, C. 

 Fossils from Pacific States, 



Gabb. 



1871. Age of some Western lignites, 



Newberry. 



Ancient lakes of western Amer- 

 ica, Newberry. 

 1873. Map of United States, Hitch- 

 cock, C. H. ; Hitchcock and 

 Blake. 



Map of United States,by Hitch- 

 cock and Blake, Dana, J. D. 

 • Distribution of mining dis- 

 tricts, Raymond. 



