DABTON.] 



NORTH AMERICAN GEOLOGY. 



279 



Cretaceous — Continued. 

 Dakotas and Minnesota to Texas. 

 1806. Exploration of Red River and 

 Washita, Dunbar and Hun- 

 ter. 

 1821. Travels thronigh the Northwest, 

 Schoolcraft. 

 Structure of valley of the Mis- 

 sissippi, Nuttall. 

 Formations of western part of 

 Mississippi Valley, James, 

 E.P. 



1823. Map of country drained by 



Mississippi, western section, 

 James, E. 

 Expedition from Pittsburg to 

 the Rooky Mountains, Long. 



1824. Pumice of the Missouri, 



James, E. 

 1830. Remains of ferruginous sand 

 formation of United States, 

 Morton, S. G. 



1834. Formations near Tepetonco, 



Mexico, Schwartz. 



1835. Fossil-fish teeth in Alabama 



and divisions of the Creta- 

 ceous, Morton, S. G. 



1836. Review of report by Feather- 



stonhaugh, P. 



1838. Geology of central and western 



portion of North America, 

 Rogers, H. D. 



1839. Cr6tao6 des environs de Jalapa, 



Mexique, Galeotti. 

 Letter from Gaudalupe y Cal- 

 vo, Mexico, Schleiden. 



1840. Map and description of Texas, 



Moore, F., jr. 



1841. Upper Mississippi region and 



Cretaceous of the Upper Mis- 

 souri, Nicollet. 



1843. Cretaceous of the Missouri, 



Nicollet, Rogers, H. D. 

 Region of basin of the upper 

 Mississippi, Nicollet. 



1844. Excursion from Washington to 



frontier of Mexico, Feather- 

 stouhaugh. 

 1846. Geology of Texas, Roemer. 



Geology of the upper Missouri, 



Harris. 

 Notes on the upper Rio Grande, 

 Tilden. B. P. 

 1848. Statistics of coal, Taylor, R. C. 

 Tour in northern Mexico, Wis- 

 lizenus. 



Cretaceous — Continued. 

 Dakotas and Minnesota to Texas— 

 Continued. 



1848. Contributions to geology of 



Texas, Roemer. 

 Texas, Roemer. 

 Mittheilungen aus Fort Brown 



[Texas], Roemer. 



1849. Exploration from San Antonio 



toElPaso, Whitney, W. H. C. 



1850. Reconnaissance from Red River 



to Rio Pecos, Michler. 

 Observations in western Texas, 



Whitney, W. H. C. 

 Santa Fe expedition, Marcy. 

 Reconnaissance from Corpus 



Christi to the Leona, Michler. 



1851. Remarks on Missouri, King, H. 

 Observations on geography of 



Texas, Bollaert. 



1852. Expedition to Mauvais Terres, 



Culbertson. 



Report on valleys of Minne- 

 sota, Mississippi, and Wiscon- 

 sin rivers, Shumard, B. F. 



Kreidebildungen von Texas, 

 Roemer. 



Survey of Wisconsin, Iowa, 

 Minnesota, etc., Owen, D. D. 



Geology of middle and western 

 Minnesota, Norwood. 



1853. Kreide am oberen Missouri, 



Buch. 



Exploration of Red River of 

 Louisiana, Marcy, R. B. 



Arkansas, geology of, Law- 

 rence, B. 



Ueber Texas, Roemer. 



1854. Exploration for railroad to the 



Pacific, Whipple. 



Map of Wisconsin, Iowa, and 

 Minnesota, Owen, D. D. 



Notes from Preston, Red River, 

 and El Paso, Marcou, J. 



Preliminary report of survey 

 in California, Blake, W. P. 



Exploration between thirty- 

 eighth and forty-first parallel 

 in 1853-54, ScheU. 



1855. Notes entre Preston et El Paso, 



Marcou, J. 

 Geology of route near latitude 



32°, to the Pacific, Blake, 



W. P. 

 Cretaceous basin of Rio Bravo 



del Norte, Sohott. 



