244 



CATALOGUE AND INDEX OF 



[BUIiL. 127, 



Claypole, E. W.— Continued. 



On the equivalent of the Schoharie 



grit of New York in middle Pennsyl- 

 vania. 



Am. Phil. Soc, Proo., vol, 20, pp. 634-536, 

 1883. 



On two small patches of Catskill 



represented near Le Boy ou the map 

 in Eeport G in the second geological 

 survey of Pennsylvania. 



Am. Phil. Soc, Proc, vol. 20, pp. 633-534 

 (J p.), 1883. 



On a mass of Catskill rocks sup- 

 posed to exist on the north bank of 

 Towanda Creek, near Franklin. 



Am. Phil. Soc, Proc, vol. 20, pp. 531-533, 

 1883. 

 On an error in identifying two dis- 

 tinct beds of iron ore in Eeport G of 

 the geological survey of Bradford 

 County, Pa. 



Am. Phil. Soc, Proc, vol. 20, pp. 529-530, 

 1883. 



On the occurrence of fossiliferous 



strata in the lower Pouent (Catskill) 

 group of middle Pennsylvania. 



Am. Nat., vol. 17, pp. 274-282, 1883. 



The Niagara group of New York ab- 

 sent from Perry County, Pa. 



Am. Phil. Soc, Proc, vol. 21, pp. 500-502, 

 1884. 



Eeport on some fossils from the lower 



coal measures near Wilkesbarre, Lu- 

 zerne County, Pa. 



Wyoming Hist, and Geol. Soc, Proc and 

 Coll., vol. 2, pp. 239-253, 1884. 



The Onondaga salt group, or gyp- 

 seous group of New York, in Perry 

 County, Pa. 



Am. Phil. Soc, Proc, vol. 21, pp. 497-499, 

 1884. 



On the Clinton and other shales, etc., 



composing the fifth group of Eogers in 

 the first survey of Pennsylvania, 



Am. Phil. Soc, Proc, vol. 21, pp. 492-496, 

 1884. 



Notes on the genus Eensselaeria in 



the Hamilton group in Perry County 

 [Pa.]. 



Am. Phil. Soc, Proc, vol. 21, pp. 235-236 

 (J p.), 1884. 



On the equivalent of the New York 



Portage in Perry County, middle Penn- 

 sylvania. 



Am. Phil. Soc, Proc, vol. 21, pp. 230-235. 

 1884. 



Claypole, E. W.— Continued. 



The Perry County fault. Note ou 



an important correction in the geology 

 ical map of Pennsylvania. 



Am. Phil. Soc, Proc, vol. 21, pp. 218-225, 

 1884. 



On the Hamilton sandstone of imd- 



die Pennsylvania. [Abstract.] 



Am . Aaaoc , Proc, vol. 32, pp. 244-246, 1884. 



[ ] [On the crumpling of the earth's 



crust as shown by a section across 

 Huntingdon, Juniata, and Perry coun- 

 ties, Pa.] 



Bead to Am. Assoc Adv. Sol., 1884. 



Science, vol. 4, p. 258 (i col.), 1884. 



On some fish remains recently dis- 

 covered in the Silurian rocks of Penn- 

 sylvania. [Abstract.] 



Am. Assoc, Proc, vol. 38, pp. 424-428, 1885. 



Perry County. 



2d Geol. Surv. Pennsylvania, Report F2, a 

 preliminary report on the Paleontology of 

 Perry County, by E. W. Claypole, pp. 1-437, 

 map, Harrisburg, 1885. 



On the vertical range of certain fos- 

 sil species in Pennsylvania and New 

 York. 



Am. Nat., vol. 19, pp. 644-654, 1885. 



On the recent discovery of ptoraspi- 



dian fish in the Upper Silurian rocks of 

 North America. 



Geol. Soc, Quart. Jour., a-oI. 41, pp. 48-64, 

 1885. 



Pennsylvania before and after the 



elevation of the Appalachian Moun- 

 tains. 



British Assoc, lleport of 51th meeting, p. 

 718, 1S85. 



Pennsylvania before and after the 



elevation of the Appalachian Moun- 

 tains, a study in dynamical geology. 

 Am. Nat., vol. 19, 257-268, 1885. 



On the materials of the Appala- 

 chians. 



Eead to Am. Assoc. Adv. Sci., 1885. 

 Abstracts, Am. Joiir. Sci., 3d series, vol. 30, 

 p. 316 (5 lines), 1885 ; SoieucB, vol. 6 p. 221 (J p.), 

 1885. 



Buffalo and Chicago, or "What 



might have been." 



Am. Nat., vol. 20, pp. 856-862, 1886. 

 Abstract, Am. Assoc, Proc, vol. 36, p. 224 



(J p.), 1886. 



The old gorge at Niagara. 



Science, vol. 8, p. 236 ( j p.), 1886. 



