EARLE, INTERBEDDED IRON ORE DEPOSITS ;165 



217. McCreath. a. S., and D'Invilliers, E. V.: Mineral Resources of the 



Upper Cumberland Valley of Southeastern Kentucky and South- 

 western Virginia. 1902. 



218. : Fossil Ores, etc. I'a. 2nd Geol. Surv. Rept. M. M., pp. 229-246. 



1879. 



219. , D'Invilliers. E. V.. and. See D'Invilliers, E. V. (87). 



220. McDonald, P. B. : Mining in Northern New York. Eng. and Mng. Jour., 



p. 689. April, 191.3. 



221. Meek. S. E. : Clinton Fossils. Geol. of Ohio, Vol. I, Pt. 2, Vol. I, pp. 



176-193, 241-242. 1873. 



222. : RhyncJionella neglecta var. scoMna. Am. Jour. Sci., 3rd Ser., 



Vol. IV, p. 277. 1872. 



223. : Idem. Pal. Ohio, Vol. I, p. 179, pi. 13, fig. 3. 1873. 



224. MooKE, P. N. : Iron Ores Near Cumberland Gap, Virginia. The Virginias, 



p. 78. May, 1880. 

 225. : Idem. Ky. (Jeol. Surv. Rept., 2nd Ser., Vol. IV, pp. 241-254. 



1878. 

 226. : Clinton Ore. Ky. Geol. Surv. Rept., Vol. C, pp. 229-232. 1884. 



227. Morris, W. H. : The Control of Silicon in Pig Iron. Am. Inst. Mng. 



Engrs. Trans.. Vol. XXI. pp. 350-351. 1892-1893. Refers to Clinton 

 ore as one too high in silica. 



228. Newberry. J. S. : The Geological Survey of Ohio, Its Progress in 1869, 



p. 19. 1870. Rept. of an address delivered to the legislature, Feb. 

 7, 1870. 



229. : The Clinton and Niagara Group. Ohio Geol. Surv., Rept. of 



Prog., Pt. I, pp. 14-15. 1869. Geological map of Ohio dated 1870. 



230. : Medina and Clinton Groups. Ohio Geol. Surv. Rept., Vol. I, pp. 



62. 103, 127. 1873. 



231. : Corals of the Clinton Formation. Ohio Geol. Surv. Rept., Vol. 



II. pp. 224-228. 1875. 



232. : School of Mines Quart., p. 14. 1880. Favors sedimentary theory. 



233. : The Clinton (iroup. Ohio Geol. Surv. Rept, Vol. Ill, pp. 5-7. 



1878. 



234. Newland, D. H., and Hartnagel. C. A. : Iron Ores of the Clinton For- 



mation in New York State. N. Y. St. Mus. Bull. 123. 1908. 



235. : The Clinton Iron Ore Deposits in New Y'ork State. Am. Inst. 



xMng. Engrs. Trans., Vol. XL, pp. 165-183. 1909. 



236. Nitze, H. B. C, Wilkens. H. A. J., and. See Wilkens, H. A. J., and 



Nitze, H. B. C. (346). 



237. O'Harra. C. C. : The (ieology of Allegany County. Maryland Geol. Surv., 



Allegany County, pp. 89-91. 1900. The Clinton Formation. 



238. Orton, Edward: Clinton Group in Montgomery County. Ohio Geol. 



Surv.. Rept. of Prog., pp. 142-143. 1869. 



239. : Clinton Limestone in Highland County. Ohio Geol. Surv., Rept. 



of Prog., pp. 271-272. 1870. 



240. : Report on the Geology of Warren County. Ohio Geol. Surv. 



Rept., Vol. Ill, pp. 381-391. 1878. 



241. : Iron Ores of Ohio. Geology of Ohio, Vol. V, p. 371. 1884. 



242. : Clinton Limestone in Preble County. Geology of Ohio, Vol. III. 



pp. 406-408. 1878. 



