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LAUR, J. A. Vereinfachte und vervollkommende practische Geo- 

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LAURE, G. C. Die Echinoiden der Oesterreichische Ungarischen 

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LAURENT, Auguste. Precis de Cristallograpbie. 



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LAW, Henry. The Elements of Euclid, with many additional pro 

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A Treatise on Logarithms and Trigonometrical and other 



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LAW Relating to the Regulation of Mines in Nova Scotia. Vol. in., 



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LEA, Carpenter, Stimpson, Binney and Prime. Check Lists of the 

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LE BLANC. Nouveau Systeme complet de Filature de Coton usite 



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LECOUTE, John L. Classification of the Coleoptera of North 



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LEE, Thomas, J. Tables and Formulae, useful in Surveying, Geo 

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LEEDS, Albert R. See Wurtz, Henry, and Leeds, Albert. 



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LE GENIE Industrielle. See under Journals. 



