[ I 9 20 -] 



102 



SOKOL, R. Ueber die Projection en von Analysen der kristallinen Schiefer und 



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Tc.-h. geol. Eeichsanst., Wien, 1918, pp. 226-239, figs. 1918. 

 SOLLAS, W. J. Paviland Cave : an Aurignacian Station in Wales. (Tbe Huxley 



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 SOMMERMEIER, L. Neue Ooide. Zeitschr. deutsch. geol. Gesellsch. lxvi. 



Ahh. pp. 318-329, pis. xxiii-xxvi. 1914. 

 SOPER, E. K. The Peat Deposits of Minnesota. Hull. Geol. Surv. Jlinnesota, 



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. See also Grout. F. F., 3. 



SOPWITH, A. [Obit.] See Axon.. 14. 



SORRY, II. C. See Hadfield, Sir R. ; Sf Wolff, J. E. 



SOUTH AFRICA, Uxiox of. Department of Mines and Industries. Annual 



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 SOUTH AUSTRALIA. Annual Report of the Director of Mines and Government 



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 SOUTHERN RHODESIA. Geological Survey. Report of the Director 



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 SOUZA, P. de. Sur le Carbonifere inferieur et moyen en Portugal. C. R. Acad. 



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 SPARN, E. Bibliografia de la Geologia, Mineralogia y Paleontologia de la Republica 



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SPATH, L. F. The Ammonite Siphuncle. Geol. Mag. 1920, pp. 142-144. 

 1920. 



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 SPEIGHT, R, Further Notes on the Geology of the Trelissick or Castle Hill 



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106. 1920. 



SPENCE, H. S. Graphite. Canada Dep. Mines, Mines Branch, no. 511, pp. i-ix, 



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 SPENCER, A. C. The Geologv and Ore Deposits of Ely, Nevada. Prof. Papers, 



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 . See also Harder, E. C, 2. 



SPENCER, J. W. Outline of the Evolution of the Falls of Niagara. Contrast 

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 A.C. 



2. Origin and Age of the Ontario Shore-Line — Birth of the Modern Saint 



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 And A.C. 



