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  1. 61
    Proceedings of the second Pan American scientific congress : pharmaceutical products from Latin American drugs /

    Proceedings of the second Pan American scientific congress : pharmaceutical products from Latin American drugs / by Dohme, A. R. L.

    Article
  2. 62
    Proceedings of the second Pan American scientific congress : a simple efficient, and economic filter, its application to the filtration of the yellow precipitate in phosphoric-acid estimations /

    Proceedings of the second Pan American scientific congress : a simple efficient, and economic filter, its application to the filtration of the yellow precipitate in phosphoric-acid... by Kellogg, E. H.

    Article
  3. 63
    Proceedings of the second Pan American scientific congress : the fuel situation in the Andean Plateaus /

    Proceedings of the second Pan American scientific congress : the fuel situation in the Andean Plateaus / by Miller, Benjamin Leroy

    Article
  4. 64
    Proceedings of the second Pan American scientific congress : practical difficultives of conserving our fuel supply /

    Proceedings of the second Pan American scientific congress : practical difficultives of conserving our fuel supply / by Burraws, J. S.

    Article
  5. 65
    Proceedings of the second Pan American scientific congress : saving of coal through the employment of better mining methods /

    Proceedings of the second Pan American scientific congress : saving of coal through the employment of better mining methods / by Haas, Frank

    Article
  6. 66
    Proceedings of the second Pan American scientific congress : the phosphate resources of the United States /

    Proceedings of the second Pan American scientific congress : the phosphate resources of the United States / by Mansfield, George Rogers

    Article
  7. 67
    Proceedings of the second Pan American scientific congress : conservation of iron ore /

    Proceedings of the second Pan American scientific congress : conservation of iron ore / by Leith, C. K.

    Article
  8. 68
    Proceedings of the second Pan American scientific congress : the conservation of phosphate rock in the United States /

    Proceedings of the second Pan American scientific congress : the conservation of phosphate rock in the United States / by Phalen, W. C.

    Article
  9. 69
    Proceedings of the second Pan American scientific congress : metallurgical operations at the Braden Copper Co /

    Proceedings of the second Pan American scientific congress : metallurgical operations at the Braden Copper Co / by Douglass, R. E.

    Article
  10. 70
    Proceedings of the second Pan American scientific congress : metallurgical operations at the Chile Exploration Co /

    Proceedings of the second Pan American scientific congress : metallurgical operations at the Chile Exploration Co / by Rose, C. A.

    Article
  11. 71
    Proceedings of the second Pan American scientific congress : recientes adelantos en la práctica metalúrgica en el Perú /

    Proceedings of the second Pan American scientific congress : recientes adelantos en la práctica metalúrgica en el Perú / by Fort, Michel

    Article
  12. 72
    Proceedings of the second Pan American scientific congress : acción del sulfato de manganeso en ls fermentación vínica /

    Proceedings of the second Pan American scientific congress : acción del sulfato de manganeso en ls fermentación vínica / by Lara, Juan B.

    Article
  13. 73
    Proceedings of the second Pan American scientific congress : the application of the paper-pulp filter to the quantitative estimation of calcium and magnesium /

    Proceedings of the second Pan American scientific congress : the application of the paper-pulp filter to the quantitative estimation of calcium and magnesium / by Jodidi, S. L.

    Article
  14. 74
    Proceedings of the second Pan American scientific congress : standard methods for sampling and analyzing coal /

    Proceedings of the second Pan American scientific congress : standard methods for sampling and analyzing coal / by Fieldner, A. C.

    Article
  15. 75
    Proceedings of the second Pan American scientific congress : ore dressing /

    Proceedings of the second Pan American scientific congress : ore dressing / by Richards, Robert Hallowell

    Article
  16. 76
    Proceedings of the second Pan American scientific congress : the genesis of the chilean nitrate deposits /

    Proceedings of the second Pan American scientific congress : the genesis of the chilean nitrate deposits / by Singewald, Joseph T.

    Article
  17. 77
    Proceedings of the second Pan American scientific congress : leyes mineras de cada país y modificaciones que pueden ser hechas para favorecer la explotación de los recursos minerales - historia de la industria minera de cada país con referencia especial a los principios de esta industria /

    Proceedings of the second Pan American scientific congress : leyes mineras de cada país y modificaciones que pueden ser hechas para favorecer la explotación de los recursos mineral... by Sánchez, Jil F.

    Article
  18. 78
    Proceedings of the second Pan American scientific congress : código de minas de Chile /

    Proceedings of the second Pan American scientific congress : código de minas de Chile / by Foster, L. Julio

    Article
  19. 79
    Proceedings of the second Pan American scientific congress : los yacimientos de los minerales de wolfram en la República Argentina /

    Proceedings of the second Pan American scientific congress : los yacimientos de los minerales de wolfram en la República Argentina / by Beder, Roberto

    Article
  20. 80
    Proceedings of the second Pan American scientific congress : history of the origin and development of de United States mining laws /

    Proceedings of the second Pan American scientific congress : history of the origin and development of de United States mining laws / by Thompson, J. W.

    Article

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