568 



CATALOGUE AND INDEX OF 



[BULL. 127. 



Lea, Isaac — Continued. 



Contributions to geology, 227 pages, 



plates, Philadelphia, 1833. 



Includes ' ' Tertiary formation of Alabama, " 

 •'New fossil shells from Maryland and Now 

 Jersey," "New genus of fossil shell from 

 New Jersey," "Tufaceous lacustrine forma- 

 tion of Syracuse, Onondaga County, N.T." 



Abstracts, Am. Jour. Sci., vol. 25, pp. 413- 

 423, 1833. 



Itacolnmlte from Spartanburg dis- 

 trict. South Carolina. 



Am. Phil. Soc, Proc.,vol. 4, p. 244 (J p.), 1847. 



[Ueber Fussspuren im alten rothen 



Sandstein in Pennsylvanien.] 



Geol. Gesell., Zeit., vol., 1, pp. 261-262, 1849. 



On the Dauphin and Susquehanna 



coal fields. 



Franklin Inst. Jour., 2d series, vol. 21, pp. 

 142-151, 1851. 



On the fossil footmarlss in the red 



sandstone of Pottsville, Sohuykill 

 County, Pa. 



Am. Phil. Soc, Trans., vol. 10, new series, 

 pp. 307-319, plates, 1852. 



[Notes on a fossil from the new red 



sandstone conglomerate in Pennsylva- 

 nia, etc.] 



Philadelphia Acad. Sci., Proc, vol. 5, pp. 

 171-172, 1852. 



Description of a fossil Saurian of the 



new red sandstone formation of Penn- 

 sylvania; with some account of that 

 formation. 



Philadelphia Acad. Soi. Jour., vol. 2, 2d 

 series, pp. 185-202, 3 plates, 1854. 



Abstract Am. Jour. Sci., 2d series, vol. 14, 

 p. 451, 1852. 



Fossil footprints in the red sandstone 



of Pottsville, Pa., 16 pages super royal 

 folio, plate, Philadelphia, 1855. 



Abstract, Am. Jour. Sci., 2d series, vol. 20, 

 p. 301 (i p.), 1856. 



[Relation of rocks near Gwynned, 



Pa., to those about Phoentxville, Pa.] 

 Philadelphia Acad. Sci., Proc, vol. 9, p. 173 

 (4 p.), 1858. 

 [On the trilobite formation at Brain- 

 tree, Mass.] 



Philadelphia Acad. Sci., Proc, vol. 9, p. 205 

 (J p.), 1858. 



[On Cretaceous of New Jersey.] 



Philadelphia Acad. Sci., Proc, vol. 10, pp. 

 218-221, 1859. 

 [On ageofJuratrias of eastern United 



States.] 



Philadelphia Acad. Sol., Proc, vol. 10, pp. 

 90-92, 1859. 



Lea, M. Carey. On the first or southern 

 coal field of Pennsylvania. 



Am. Jour. Sci., vol. 40, pp. 370-374, 1841. 

 Leasure, D. [Geological section at New 

 Castle, Lawrence County, Pa.j 



Medical Soc. of Pa., Trans., new series, 

 vol. 1, p. 96, 1856. 



Leavenworth, F. P. [Report on Sabine 

 River.] 



TJ. S. Army, Chief of Engineers, Eeport for 



1873, part 1, pp. 681-684, Washington, 1873. 



Survey on Atchafalaya River. 



U. S. Army, Chief of Engineers, Keport for 



1874, part 1, pp. 771-775, "Washington, 1875. 



Le Conte, John L. Account j)f some vol- 

 canic springs in the desert of the Colo- 

 rado in southern California. 



Am. Jour. Soi., 2d series, vol. 19, pp. 1-6, 1855. 



Remarks on the Rev. Henry Mose- 



ley's paper on the descent of glaciers. 

 Am. Jour. Sci., 2d series, vol. 20, pp. 335-339, 

 1855. 



Formation of oceans and continents. 



Kead to Am. Assoc. Adv. Sci., 1859. 

 Abstract, Canadian Nat., vol. 9, pp. 293-294, 

 1859. 



- — Cretaceous coal in New Mexico. 



Am. Jour. Sci., 2d series, vol. 45, p. 136 (J p.), 

 1868. 



Notes on the geology of the survey 



for the extension of the Union Pacific 

 Railway from the Smoky Hill River, 

 Kans., to the Rio Grande, 76 pages, 8°, 

 Philadelphia, 1858. 



Le Conte, Joseph. Onthe agency of the 

 Gulf Stream in the formation of the 

 peninsula of Florida. 



Am. Assoc. , Proc. , vol. 10, part 2, pp. 103-119, 

 1857. 



Lectures on coal. 



Smithsonian Keport for 1857, pp. 119-168, 

 1858. 



A theory of the formation of the 



great features of the earth's surface. 

 Am. Jour. Soi., 3d series, vol. 4, pp. 345-355, 

 460-472, 1872. 



On some of the ancient glaciers of 



the Sierras. 



Am. Joor. Soi., 3d series, vol. 5, pp. 325-342, 

 map, 1873. 



California Acad. Soi., Proc, vol. 4, pp. 259- 

 262, 1873. 



On the formation of the features of 



the earth surface. Reply to criticisms 

 of T. Sterry Hunt. 



Am. Jour. Sci., 3d series, vol. 5, pp. 448-453, 

 1873. 



