DABTON.] 



NORTH AMERICAN GEOLOGY. 



43 



Archean and Algonkian — Continued. 

 Maryland to Alabama — Continued. 



1835. Review of sections in Virginia 



and Maryland, Taylor, E. C. 



Fossil-fish teeth, gault in Ala- 

 bama, and divisions of Creta- 

 ceous, Morton, S. C. 



Rappahannocli: gold mines in 

 Virginia, Wellington. 



1836. Reconnaissance of Virginia, 



Rogers, W. B. 

 Reconnaissance from "Washing- 

 ton through Wisconsin to 

 Coteau des Prairies, Feather- 

 stonhaugh. 



1837. Physical geography of Mary- 



land, Ducatel. 



Fourth report on Tennessee, 

 Troost. 



Gold veins near Fredericks- 

 burg, Va., Silliman, Maury. 



Gold mines and region of Vir- 

 ginia, Silliman. 



1838. Report of geologist of Mary- 



land, Ducatel. 



1839. Report of geologist of Mary- 



land, Ducatel. 

 First and second reports on 



Delaware, Booth. 

 Report of survey of Virginia 



for 1838, Rogers, W. B. 



1840. Report of survey of Virginia 



for 1839, Rogers, W. B. 

 Report of geologist of Mary- 

 land, Ducatel. 



1841. Report of survey of Virginia 



for 1840, Rogers, W. B. 

 Survey of Delaware, Booth. 



1842. Elements of geology and out- 



line of geology of North Car- 

 olina, Mitchell, E. 



1843. Agricultural survey of South 



Carolina, Ruffin. 



1844. Surrey of South Carolina, 



Tuomey. 



1846. Fifth report on Tennessee, 



Troost. 



1847. Coal field near Richmond, Va., 



Lyell. 



1848. Geology of South Carolina, 



Tuomey. 

 Letters on geology, Christy. 

 Report on geology of South 



Carolina, Vanuxem. 



Archean and Algonkian — Continued. 

 Maryland to' Alabama — Continued. 

 1849. Reinarks on primary of Blue 

 Ridge, Va., Rogers, W. B. 

 Statistics of Georgia, White, G. 

 Second visit to the United 

 States, Lyell. 



1851. Gold formations of Maryland, 



Virginia, and North Caro- 

 lina, Johnson, W. E. 



1852. Observations on magnetism, 



Locke. 

 Second report of chemist of 



Maryland, Higgins. 

 Deep River coal field region, 



McLenahan. 

 Report of geological survey of 



North Carolina, Emmons, E. 



1853. Third report of chemist of 



Maryland, Higgins. 

 Geologic map of United States, 

 etc., Marcou, J. 



1854. Gold-bearing slates, Montgom- 



ery County, Md., Emmons, E. 



Gold region of Lumpkin Coun- 

 ty, Ga., Jackson, C. T. 



Erzgange und das Gang-Ge- 

 birge von Nord Carolina, 

 etc., Diffenbach. 



1855. Fourth report of chemist of 



Maryland, Higgins. 



American geology, Emmons, E. 



Mineralreichthum der Verein- 

 igten Staaten, Difi^enbach. 



Ducktown copper mines, Ten- 

 nessee, Tuomey. 



1856. Report of survey of South Car- 



olina for 1856, Lieber. 



Fifth report of chemist of 

 Maryland, Higgins. 



Report of midland counties of 

 North Carolina, Emmons, E. 



New fossil coal from North Car- 

 olina, Emmons, E. 



1857. Geology of Tennessee, Currey. 

 Analyses for geologic survey 



of Alabama, Mallet, J. W. 

 Copper lodes near Sykesville, 



Md., Ansted. 

 Copper lodes of Ducktown, 



Tenn., Ansted. 



1858. Sixth report of chemist of 



Maryland, Higgins. 

 Report on survey of South Car- 

 olina, Lieber. 



