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Commission des travaux yeologiques du Portugal. Desci'iption de la Faune jurassique du 

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Assembly. Bulletin N. 2— 4. Jefterson 1890/91. 

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year 1S90. Washington 1890. 

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report Ibr 1886.) Washington 1889. 

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P. 4. Harrisburg 1889/90. 

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 Annais of Mathematics. Vol. V. N. 6. Washington 1891. 4. 

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W^ashington 1890. 

 Proceedings of the American Philosophical Society. Vol. XXVIII. N. 134. Philadelphia 1890. 

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Baltimore 1890. 

 Johns Hopkins University. Vol. I. I\'. N. 7. Studies froni the biological Laboratory. 



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 Proceedings of the American Academy of Arts and Sciences. N.Ser.\'ol. XV' IL Boston 1890. 

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 The American Journal of Philology. Vol. XI. 2. 3. Baltimore 1890. 



