398 



CATALOGUE AND INDEX OP 



[BULL. 127. 



Gazlay, Sayrs. Origin of bituminous 



coal, 

 I Am. Jour. Soi., vol. 17, pp. 397-398 (J p.), 



^ 1830. 



Gebhard, Jolin. On the geology and 

 mineralogy of Scholiarie, N. Y. 

 Am. Jour. Soi., vol. 28, pp. 172-177, 1835. 



Observations on the geological fea- 

 tures of the south side of the Ontario 

 Valley. 



I Albany Inst., Trans., vol. 1, pp. 55-69, 1830. 



I Am. Jour, Soi., vol. 11, pp. 213-218, plates, 



1826. 



Geddes, George, Survey of Onondaga, 



New York State Agxi. Sec, Trans., pp. 219- 

 352, map and plate, 1859. 



Geer, Gerard de. On the Quaternary 

 changes of level in Scandinavia. 

 Am. Geol., vol. 8, pp. 236-237 (% p.), 1891. 

 Abstracii of paper read to Geol. Soo. of 

 America, 1891. 



Geiger, H. E., and Keith, Arthur. The 

 structure of the Blue Ridge near Har- 

 pers Ferry, 



Geol. Soo. Am., Bull., vol. 2, pp. 155-163, 164, 

 plates 4, 5, 1891. 



Discussed by C. D. "Walcott and C. H. Hitch- 

 oook, pp. 163-164. 



Abstracts, Am. Geol., vol. 7, p. 262 (J p.) ; 

 Am. Nat., vol. 25, pp. 364, 658 (1 lines), 1891. 



Geikie, Archibald, The lava fields of 

 northwestern Europe, 



Am. Jour. Sci., 3d series, vol. 21, pp. 145-146, 

 1881. 

 Abstract from Nature, November 4, 1880. 



Archean rocks of the Wahsatoh 



Mountains, 



Am. Jour. Sci., 3d series, vol. 19, pp. 363-367, 

 1880. 



The ancient glaciers of the Rocky 



Mountains, 



Am. Nat., vol. 15, pp. 1-7, 1881. 



Geological sketches at home and 



abroad, x, 3.32 pages, New York, 1882, 



In Wyoming [the geysers of the 



Yellowstone], 



Geological sketches at borne and abroad, 

 pp, 180-238, New York, 1882. From Macmil- 

 lan*8 Magazine. 



Text-book of geology, 971 pages, 



plate, New York, 1882. 

 The crystalline rocks of the Scot- 

 tish Highlands, 



Am, Jour. Sci., 3d series, vol. 29, pp. 10-15, 

 1885. From Nature, November 13, 1885. 



Class book of geology, 18 -f 516 



pages, 12°, London, 1886, [Not seen,] 



Geikie, James, On changes of climate 

 during the Glacial epoch (3d paper), 

 Geol. Mag., vol. 9, pp. 61-69, 1872. 



The Ice age in Europe and North 



America. 



Edinburg Geol. Soc, Trans., vol. 5, pp. 144- 

 168, 1885. 



Outlines of geology, 484 pages, 8°, 



London, 1886, 

 Genth, F. A. On the products of erup- 

 tion at Hecla. 



Am. Jour. Soi., 2d series, vol. 7, p. 114 (J p.), 

 1849. 



Mineral resources of North Carolina, 



31 pages, Philadelphia, 1871. 



From Jour. Franklin Inst., vol. 62, Dec, 1871. 



Corundum, its alterations and asso- 

 ciated minerals. 



Am. Phil. Soc, Proc, vol. 13, pp. 361-406, 

 1873. 



Reply to T, S, Hunt. 



Am. Jour. Sci., 3d series, vol. 8, pp. 221-223, 

 with notes by J. D. Dana, 1874. 



Am. Phil. Soc, Proc, vol. 14, pp. 216-218, 

 1876. 



[On the minerals found in the State 



of North Carolina.] 



Geol. Surv. North Carolina, Report by W. C. 

 Kerr, Appendix C, pp. 53-89, Raleigh, 1875. 



Investigation of iron ores and lime- 

 stone from ore banks of Spruce Creek, 

 Half Moon Run, and Warriors Mark 

 Run, in Centre, Blair, and Huntingdon 

 counties. Pa, 



Am. Phil. Soc, Proc, vol. 14, pp. 84-99, 1876. 



[ ] Analyses of minerals and rocks 



from Bucks, Montgomery, and Phila- 

 delphia counties. Pa, 



2d Geol. Surv. Pennsylvania, Report C6, ge- 

 ology Philadelphia County, etc., by C. B. Hall, 

 pp. 94-136, Harrisburg, 1881. 



Minerals, 



"Minerals and mineral localities of North 

 Carolina," being chap. 1 of the 2d volume of 

 the Geology of North Carolina, pp. 8-122, Ra- 

 leigh, 1881. 



Analyses of Nittany Valley iron ores 



and limestones, 



2d Geol. Surv. Pennsylvania, Report T4, 

 geology of Centre County, by d'lnvilliers, pp. 

 385-394, Harrisburg, 1884. 



Additional analyses of minerals and 



rooks from Delaware County, 



2d Geol. Surv. Pennsylvania, Report 05, 

 iield notes in Delaware County, by C. B. Hall, 

 part 1, pp. 111-120, Harrisburg, 1885, 



