532 



CATALOGUE AND INDEX OF 



[BULL. 127. 



Turatrias — Continued. 

 Massachusetts to North Carolina — 

 Continued. 



1839. Third report of first district of 



New York, Matlier. 



Third report ou survey of Penn- 

 sylvania, Rogers, H. D. 



Geology of North America, 

 Danherry. 



1840. Report of geologist of Mary- 



laud, Ducatel. 

 Fourth report ou survey of 



Pennsylvania, Rogers, H. D. 

 Report of survey of Virginia 



for 1839, Rogers, "W. B. 

 Description of geology of New 



Jersey, Rogers, H. D. 



1841. History of geologic studies in 



the United States,Hitchcock. 



Pinal report on Massachusetts, 

 Hitchcock, E. 



On j oints in rocks, Hitchcock, 

 E. ; Silliman, B., jr. 



Fifth report on survey of Penn- 

 sylvania, Rogers, H. D. 



Report of survey of Virginia 

 for 1841, Rogers, W. B. 



Report of survey of Virginia 

 for 1840, Rogers, W. B. 



1842. Elements of geology and out- 



line of geology of North 

 Carolina, Mitchell, E. 



Geology of Connecticut, Peroi- 

 val. 



Nature of dip of Trias. , Silliman , 

 Rogers, H. D. ; Rogers, W. B. 



Grooved surfaces at hase of 

 secondary in Pennsylvania, 

 Rogers, H. D. 



Natural coke of eastern Vir- 

 ginia, Rogers, W. B. 



Notices of coal mines of Rich- 

 mond, Va., Woodridge. 



1843. Fossils from red sandstone of 



New Jersey, Redfield. 

 Temperature in coal mines of 



eastern Virginia, Rogers, 



W.B. 

 Plants from red sandstone, 



Hitchcock, E. 

 Age of coal rocks of eastern 



Virginia, Rogers, W. B. 

 Fish beds and footmark in red 



sandstone of New Jersey, 



Redfleld, W. C. 



Juratrias — Continued. 

 Massachusetts to Nohth Carolina — 

 Continued. 



1843. Geology of New York, first dis- 



trict, Mather. 



Geology of western district of 

 New York, Hall, J. 



Age of coal near Richmond and 

 Frederiokshurg sandstone, 

 Rogers, W. B. 



Fossil footprints and rain im- 

 pressions in Connecticut Val- 

 ley, Lyell. 



Causes of crescentic dikes of 

 trap, Rogers, H. D. 



Age of the new red sandstone, 

 Rogers, H. D. 



1844. Native copper in Whately, 



Mass., Hitchcock, E. 



Views on igneous action, phe- 

 nomena in New York, Beck. 



Fossil footmarks at Turners 

 Falls, Mass., Deane, J. 



Percival the original observer 

 of crescentic dikes in Con- 

 necticut, Silliman. 



Report on traps of sandstones 

 of Connecticut, Silliman, 

 B.jr. 



Explanation of geologic map of 

 Massachusetts, Hitchcock, E. 



American geology and condi- 

 tion of research in United 

 States, Rogers, H. D. 



Trap tufa of Connecticut Val- 

 ley, Hitchcock, E. 



1845. Relations of trap and sand- 



stone of Connecticut Valley, 

 Whelpley. 



Polarity of trap rocks, Hitch- 

 cock, E. 



Physical geology east of Rocky 

 Mountains and conditions of 

 sedimentation and uplift, 

 Mather. 



Minerals accompanying trap, 

 Jackson, C. T. 



Travels in North America, 

 Lyell. 



Evidences of congelation in new 

 red sandstone, Barratt, J. 



1846. Agriculture of New York, Em- 



mons, E. 

 Observations on magnetic dip, 

 Locke. 



