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112 



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 . See also Frosteeus, B., 3. 



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WILLIAMS, M. Y. The Oil-Fields of Elgin, Essex, and the Southern Part of 

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WILSON, G. V., & J. S. Flett. The Lead, Zinc, Copper, and Nickel-Ores of 

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. See also Howe, J. A. 



WILSON, M. E. Mineral Deposits in the Ottawa Valley. Summ. Rep. Geol. 



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WILSON, T. S. Notes on the Views of the late Prof. Charles Lapworxh with 

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WINDHAUSEN, A. Ensayo de una Clasificaci6n de los Elementos de Estructura 

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WINGARD, J. H. Statistics of the Mineral Production of Alabama for 1918. 



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