630 



19. Reports of explorations and surveys, to asccrtain the most pracli- 

 cable and economical route for a railroad from the Mississippi river 

 to the pacifie Océan. Vol. 1. Washington, 1835. in 4°. De la pari du 

 Secrétaire du département de la guerre à Washington. 



20. Report of the Commissioner of patents for the year 1854. Agricul- 

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 patents aux Ètats-unis à Washington. 



2J. of the Commissioner of patents for the year 1854. Arts and 



Manufactures. Vol, 2. Illustrations. Washington, 1855. in 8'. De la 



part de la Commission des patents à Washington. 



22. Smithsonian Contributions to Knowledge. Vol. 8. Washington, 185(5. 

 in 4°. De la part de l'Institut Smithsonian â Washington? 



23. List of foreign correspondents of the Smithsonian Institution. 1836, 

 De la part de l'Institut Smithsonian à Washington. 



24. Report of the board of trustées of the Winconsin Institution for the 

 éducation of the blind. Madison, 1853. in 8% De la part de l'Institut 

 Smithsonian à Washington. 



'•>*_■ JUSk 



25. Lea, Isaac. Description of a new Mollusk from the red sandstone, 

 near Pottsville, Pa, Philadelphia, 1855. in 8°. De la part de l'auteur. 



28. Trask, Iohn B. Report of the geology of northern and southern Ca- 

 lifornia. San Francisco, 1856. in 8°. De la part de l'auteur. 



27. Annals of the Lyccum of natural history of New York. Vol. 6. N°5. 

 JXew York , 1855. in 8°. De la part du Lycée d'histoire naturelle 

 de New- York. 



28. Journal of the Academy of natural sciences of Philadelphia. New 

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 démie d'histoire naturelle de Philadelphie. 



29. Proceedings ôf the Academy of natural sciences of Philadelphia. 

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