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remarks; by G.-R.-B. Hornep. Philadelphie, 1845; I vol. in-S °. 



Reports of experiments on mêlais for camion. Philadelphie, 

 1856; 1 vol. in-4°. 



On the practicability of constructing cannon of great caliber, 

 capable of enduring long-continited use under fuit charges; by 

 D. Treadwell. Cambridge, 1 856 ; 1 broch. in-8°. 



Magnelic observations , made under the orders of major 

 W.-H. Emory. Cambridge, 1856; 1 broch. in-4°. 



Proceedings of the American Association for the advuncement 

 of science. Vil* VIH lh , lX th meetings. Cambridge, 1855-1856; 

 3 vol. in-8°. 



Manoirs of the American Academy of arts and sciences. New 

 séries. Vol. V. Cambridge and Boston, 1855; 1 vol. in-4°. 



Proceedings of the Boston Society ofnatural history. Vol. V, 

 n os 12 à 17. Boston, 1855; in-8°. 



Reports of the prison discipline Society, Boston. Vol. I à III. 

 Boston, 1855; 5 vol. in-8°. 



Phenomena of the material world ; by D. Vaughan. N brr J. 

 Cincinnati, 1856; 1 broch. in-12. 



Transactions ofthc Michigan agricultural Society for 1854. 

 Vol. VI. Lansing, 1855; 1 vol. in-8°. 



Proceedings of the California Academy of natural sciences. 

 Vol. I. San Francisco, 1855; 1 vol. in-8°. 



Anales de la universidad de Chile; correspondientes al ano de 

 1843 al de 1854 (setiembre). Santiago, 1843 h 1854; 1 I vol. 

 in-8°. 



ERRATA. 



Page 248, ligne 28. ot page 250, ligue 50, au lieu de : paye 17. li^ez : page 31. 

 — 2.">1 . — 12, an lieu de : prôcppifr . lisez : précipité. 



Tome xxiv. - ï' p part. 25 



