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the /in, ru, hi Journal <>j Sciences <nul arts, Vol. \XI1, a. 1 Series, 



nciwmlxT 1 856). ' s . 



On the practicabiblj of constructing Cannon of great caliber, capable of 



. mlmum long-continued use under full charges] by Daniel Treadwell 



Cambridge, i856, 8. 

 Description of ■<■ new moibssk from the red Sandstone, near Pottsville, 



Pa; In Isaac Lea. Philadelphia, t855, S.' fig. 

 Descriptions of new species til' exotic oniones , peristomala , meianiana, 



naiades etc. (extr. from the Proceedings of the Academy of natural 



Sciences oj Philadelphia); by Isaac Lea. Philadelphia, 1857, 8.' 

 On 1 In- Red Sandstone formation of Pennsylvania. - Description of a 



new sub-genus of Naiades. - Description of a new species of Tri- 



ciiii'iia. - Description of new Fresh Water Shells from California. - 



Description of iweiii\-li\c new species of exotic uniones; by Isaai 



Lea. Philadelphia. i856, 8.° 

 Description "I the fossils and Shells collected in California; by William 



P. Blake etc. Wasington, t855, 8.' 

 Me.lie.il topograph] of Brazil and Uruguay, with incidental remarks, by 



1. K IV Horner Philadelphia, i845, 1 Vol. 8." 

 Report on the Geology of northern and southern California, embracing 



the mineral and agricultural resources of those sections; with statistics 



of the northern, southern and middle mines; by D. John B. TrasU, 8.' 

 Phenomena of the material world; by D. Vanghan; N.° 1, Cincinnati, 



18S6, 1 • 



(graphical map of the Republic of Nicaragua , with three plans and 



views; li\ Fermin Ferrer. i855, 1 fogl." gr. 

 Memorie della \ ila e • 1 1 • i tempi di monsiguor Gio. Secondo Ferrcro Pon- 



ciglione, reterendario Apostolico, primo Coosigliere e Auditorc generate 



pel prim ipe rardiualc Maurixio di Sa\oia; cou 1111 saggio di letlere e 



1 11 ' >i 1 11 1 ii< 1 1 1 1 inedili raecolli ed illuslrati per Giovainbalisla Adriaui 



Torino, Ribotta, [856, 1 Vol fid.., con ritralti. 

 l.\| let causes de la coloration iles corps et des lois constanles qui 



regisaent la reproduction des couleuis . el Trait* de I electricile , tin 

 .ilmiipi''. de la lumiere, suivi de quelques mots sur le magnetisme 

 uiiuial: par Hippolyte Landois. Paris, 1 85^, 8.° 

 Low. II , hydraulic experiments, being a selection from experiments on 



hydraulic motors, on the flow of water over weirs, and in canals of 



