DABTON ] 



NORTH AMERICAN GEOLOGY. 



797 



Pleistocene— Continued. 



Iowa, Missouri, Nebraska, Kansas 

 Region— Continued. 

 1891. Bowlder of copper in central 

 Missouri, Kirkpatrick. 

 An old lake bottom [Nebraska], 



Hicks. 

 Central Nebraska, Russell, F. W. 

 Megalonyx beds in Kansas, Ud- 



den. 

 Area and duration of Lake Agas- 



siz, Upham. 

 Criteria of englacial and sub- 

 glacial drift, Upham. 

 Glacial Lake Agassiz, Upham. 

 Rocky Mountain to Great Basin 

 Region. 

 1829. Geologic features of part of Mex- 

 ico, Maclure. 

 1834. Letter from Mexico, Schleiden. 

 1848. Reconnaissance from Leaven- 

 worth to San Diego, Emory. 



1854. Exploration between thirty- 



eighth and forty-first parallel 

 in 1853-54, Schiel. 

 Section g^ologique des Monta- 

 gues Rocheuses, Marcou, J. 



1855. Report on exploration between 



latitude 38 and 41 for route to 

 the Pacific, Schiel. 

 Ueber die Geologie Ton Nord- 

 Amerika, Marcou, J. 



1856. Reconnaissance from the Missis- 



sippi to Los Angeles, Cal., Mar- 

 cou, J. 

 Geology of route to Pacific near 

 thirty-fifth parallel, Marcou, J., 

 Blake, W. P. 



1857. Observations along Mexican 



boundary, Schott. 



Country along Mexican bound- 

 ary from the Pacific to the Col- 

 orado, Emory. 



Geology of lower Colorado re- 

 gion, Schott. 



Report on routes to the Pacific in 

 California and to the Rio 

 Grande, Antisell. 



Pluto-volcanic slope of Sierra 

 Madre, Sonora, Schott. 



1858. Fort Leavenworth to Bryan's 



Pass, Engelmann, H. 

 Map and section of country on 



Missouri River, Hayden. 

 Geology and geography of North 



America, Rogers, H. D. 



Pleistocene — Continued. 



Rocky Mountain to Great Basin 

 Region — Continued. 

 1859. Geology from Fort Bridger to 

 Camp Floyd, Utah, Engel- 

 mann, H. 

 1861. Report on Colorado River, New- 

 berry. 

 Minerals of Rooky Mountain and 

 extent of gold field, Blake, 

 W.P. 

 1863. Silver mines of Arizona, Pum- 

 pelly. 



1866. Gaylussite from Nevada,Silliman. 



1867. Survey of 100 miles west of 



Omaha, Egleston. 



1868. Second annual report of survey, 



Wyoming, Hayden. 

 Moraine and lava streams, Ari- 

 zona, Silliman. 



1869. Notes on Wyoming and Colorado, 



Hayden. 



Report of survey of Colorado and 

 New Mexico, Hayden. 



Cretaceous and Tertiary plants 

 from Yellowstone, Newberry. 



Desiccation of surface of west- 

 ern America, Blake, W. P. 



1870. Sun pictures of Rooky Mountain 



scenery, Hayden. 



Silver mines of Chihuahua, Kim- 

 ball. 



Comstook lode, King, C. 



Geology of Toyabe range, Nev., 

 Emmons, S. F. 



1871. Notes on Wyoming and Colorado, 



Hayden. 



Ancient lakes of western Amer- 

 ica, Newberry. 



Observations in Dakota, Froebel. 



Points in mineralogy and geology 

 of Utah, Blake, W. P. 



Sweetwater district, Endlich. 



1872. Profiles and sections to accom- 



pany final report of survey of 

 Territories, Hayden. 



Report on survey of Territories, 

 Hayden. 



Geysers of Yellowstone and Fire- 

 hole rivers, Hayden. 



Report on Arizona and Nevada, 

 Gilbert, G. K. 



Geology of the Missouri Valley, 

 Hayden. 



Elephanttuskin Colorado, Wood- 

 hull, Rockwell, A. P. 



