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 WIGGINTON, R, 'See Wheeler, R. V. 



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. See also Buxtoef, A., 4. 



WILKINSON, T. L. See Johnstox, W. A., 9. 



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WILLMANN, K. Die Natiirlichen Eisenoxydhydrate. Centralbl. f. Min. 1921, 

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WILLIAMS, A. H. Excursion to Tytteuhauger, Hill End, New Barnes Mill Pit, 



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 WILLIAMS. A. S. Identification of Cassiterite. Mining Mag. xxvi. pp. 27-28. 



1922. 



WILLI A MS, Howel. The Igneous Rocks of the Capel-Curig District (North Wales). 



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 WILLIAMS, H. E. Oil-Shales and Petroleum Prospects in Brazil. Trans. Am. 



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 WILLIAMS, L. B. Effect of Dj'kes on Pitch of Ore-bodies. Mining Mag. xxvi. 



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 WILLIAMS, M. Y. Palaeozoic Stratigraphy of Pagwachuan, Lower Kenogami, 



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WILLS, L. J., & B. Smith. The Lower Palaeozoic Rocks of the Llangollen 



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 WILLS, II. G. Bacteria from the Geological Aspect. Proc. Liverpool Geol. Soc. 



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 WILSER, J. L. Die Rheintalflexur Nordostlich von Basel zwischen Lorrach und 



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 WILSON, Alice E. The Range of certain Lower Ordovician Faunas of the 



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