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122. Glenn, L. C. : Resources of Tennessee. Vol. II, No. 5, p. 216. 1912. 



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125. : Types of Iron Ore Deposits in Tennessee. Resources of Tenn., 



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126. Gorden, J. H. : Iron Ores of Kentucky. Ky. Geol. Surv. Bull. 20, pp. 



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127. Grabau. a. W. : Niagara Falls Section of Clinton. N. Y. Mu.s. Bull. 45, 



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128. : The Clinton Shales. Outlines of Geological History— Willis and 



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129. Grasty. J. S. : The Hematites of Ala. Mfg. Rec. Dec. 1910. 



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131. Grosch. p. : Roteisensteinlager in Asturien. Zts. f. prakt. Geol., p. 201. 



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134. : Second Annual Rept. of the Fourth Geological District. Albany, 



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136. : Paleontology of N. Y., Vol. II. Albany, 1852. 



137. Harden. E. C. : The Iron Ores of the Appalachian Region in Virginia. 



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138. Hartley, E. : Report on the Coal and Iron Ores of Pictou County, Nova 



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140. : Geological Map of Rochester and Ontario Beach Quadrangles. 



N. Y. St. Mus. Bull. 114. 1907. 



