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vol. xviii. L854, pp. 193-200. 

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pp. 373-383. 

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 Metallurgy of Iron and iron Ores of Sweden, Russia and of Canada : Rep. Canadian 



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 Extraction of Sail from Sea-water: Rep. Canadian Geol. Survey, 1855, pp. 401-418. 

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< in Peat, and Products derived from it: Rep. Canadian Geol. Survey, 1855, pp. 125- 



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 Minerals from Silurian Rocks: Rep. Canadian Geol. Survey, 1857, pp. 193-197. 

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1858, pp. 197-218. 

 Examination of some feldspathic Rocks: /,.. E. and I>. Philosophical Magazine, 



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 Laurentian Series: 11, p. Canadian Geol. Sur ey, 1856, pp. 480-485. 

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 On the Chemistry of the primeval Earth (letter to Professor J. D. Dana): Am. 



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 Contributions to the History of Ophiolites, part I: Am. Jour. ScL, vol. xxv. 1858, 



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 On the Origin of Feldspars, and on some Points of chemical Lithology : Am. Jour. 



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 Contributions to the History of Ophiolites, part II: Am.J<m r . Sci., vol. xxvi. 1858, 



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 A Theory of igneous Rock- and Volcanoes: Toronto, L858. 

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 On the Theory of igneous Rocks and Volcanoes Canadian Naturalist, vol. iii. 1858, 



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