NORTH AMEKICAN GEOLOGY. 



719 



Orton, Edward — Continued. 



Eeport on third district [geology of 



Pike, Ross, and Greene counties] . 



Geol. Surv. Oliio, Eeport, vol. 2, pp. 611-696, 

 fiolumbus, 1874. 



[Geology of Warren, Butler, Preble; 



and Madison counties.] 



Geol. Surv. Ohio, Eeport, vol. 3, geology 

 and paleontology, part 1, geology, pp. 381-i28, 

 ColTimbns, 1878. 



Geology of Franklin County. 



Geol. Suiv. Ohio, Eeport, vol. 3, geology 

 and paleontology, part 1, geology, pp. 596- 

 646, Coltunbus, 1878. 



Supplemental report on the Hanging 



Rock district. 



Geol. Surv. Ohio, Eeport, vol. 3, geology 

 and paleontology, part 1, geology, pp. 883-941, 

 Colnmhus, 1878. 



Note on the lower Waverly strata of 



Ohio. 



Am. Jour. Sci., 3d series, vol. 18, pp. 138-139, 

 1879. 



Review of the stratigraphical geol- 

 ogy of eastern Ohio, 34 pages, plate, Co- 

 lumbus, 1880. [In report of secretary 

 of state of Ohio for 1879.] 



Abstract, Am. Jour. Sol., 3d series, vol. 20, 



' p. 333 (4 p.), 1880. 



A source of the bituminous matter 



in the Devonian and sub-Carboniferous 

 black shales of Ohio. 



Am. Jour. Sci., 3d series, vol. 24, pp. 171-174, 

 1882. 



The Great Kanawha coal fields. 



The Tirginias, vol. 3, p. 6, 4°, 1882. 



From Ohio State Journal. 

 The Berea grit of Ohio. 



Am. Assoc. Adv. Sci., Proo., vol. 30, pp. 167- 

 174, 1882. 



A source of the bituminous matter of 



the black shales of Ohio. 



Am. Assoc. Adv. Soi., Proo., vol. 31, pp. 373- 

 384, 1883. 



The Ohio coal field. 



Ohio Mining Jour., vol. 2, pp. 43-46, 1883. 

 The Bedford cannel coal. 



Eng. and Mining Jonr., voL 37, pp. 175-176, 

 4°, 1884. 



Eead to Ohio Inst. Mining Eng. 



The coal seams of the lower coal 



measures of Ohio, in part. 



Geol. Surv. Ohio, Eeport, vol. 5, economic 

 geology, pp. 129-300, 773-815, 843-1058, maps, 

 Columbus, 1884. 



The clays of Ohio and the industries 



established upon them. 



Geol. Surv, Ohio, Eeport, vol. 5, economic 

 geology, pp. 643-721, Columbus, 1884. 



Orton, Edward — Continued. 



The stratigraphical order of the 



lower coal measures of Ohio. 



Geol. Surv. Ohio, Eeport, vol. 5, economic 

 geology, pp. 1-128, Columbus, 1884. 



The iron ores of Ohio. 



Geol. Surv. Ohio, Eeport, vol. 5, economic 

 geology, pp. 371-435, O&umbus, 1884. 



[ ] Ohio [building stones] . 



10th Census TJ. S., Eeport on the building 

 stones of the ITnitedStates, and statistics of 

 quarry industry for 1880, pp. 188-215. Bound 

 as part of Vol. X, but has separate pagination, 

 ■Washington, 1884. 



Geol. Surv. Ohio, Eeport, vol. 5, economic 

 geology, pp. 577-642, Columbus, 1884. 



The Bedford cannel coal. 



Ohio Mining Jonr., vol. 2, pp. 80-86, 1884. 



The iron ores of Ohio. 



Ohio Mining Jour., vol. 2, pp. 105-113, 1884. 



The Massillon coal field. 



Ohio Mining Jour., vol 3, pp. 32-38, 1884. 



[Problems in the study of coal, with 



a sketch of recent progress in geology.] 

 Am. Assoc. Adv. Sci., Proc, voL 34, pp. 173- 



197. 1885. 



Abstract, Science, vol. 6, pp. 217-219, 1885. I 

 The natural gas wells of northwest- 

 ern Ohio. 



Science, voL 5, p. 474 (i col.), 1885. 



The correlation of the lower coal 



measures of Ohio and eastern Ken- 

 tucky. [Abstract.] 



Am. Assoc. Adv. Sci., Proc, voL 33, pp. 398- 

 399 (I p.), 1885. 



Discussed by J. P. Lesley, Science, vol. 4, p. 

 325 (^ p.), 1884. 

 The horizons of petroleum and in- 

 flammable gas in Ohio. [Abstract.] 

 Am. Assoc. Adv. Sci., Proc, vol. 33, pp. 397- 

 398 (Ip.), 1885. 



Abstract, Science, vol. 4, pp. 325-326 (J p.), 

 1884. 



[ ] Indiana [building stones]. 



lOth Census TJ. S., Eeport on the building 

 stones of the United States, and statistics of 

 the quarry industry for 1880, pp. 215-219. 

 Bound as part of Vol. X, but "With separate 

 pagination, "Washington, 1886. 



The recently discovered sources of 



natural gas and petroleum in north- 

 western Ohio. 



Am. Assoc Adv. Sci., Proc, vol. 34, pp. 202- 



204. 1886. 



Abstract, Science, vol. 6, p. 220 (J p.), 1885. 



The record of the deep well of the 



Cleveland Rolling Mill Company, 

 Cleveland, Ohio. [Abstract.] 



Am. Assoc. Adv. Soi., Proc, vol. 34, pp. 220- 

 222, 1886. 



Abstract, Am. Jour. Sci., 3d series, voL 30, p, 

 316 (5 lines), 1885. 



