64 



On the conclusion on tornados arrived at by a commiltee of the 

 Academy of sciences ofFrance, by Dr. Hare. Philadelphia 1852. 

 Fra the philosophical Sociely at Philadelphia. 



Transactions of the American philosophical Sociely held at Phi- 

 ladelphia for promoling useful knowledge Vol. X, Part. 2. 

 Philadelphia 1852. 



Proceedings of the American philosophical Sociely. Vol. V. 

 Nr. 48. 1852. 



Proceedings of the Academy of natural sciences of Philadelphia. 

 Vol. VI. Nr. 3, 4, 5, 6 & 7. Philadelphia 1852. 

 Fra Udgiverne af the American journal. 



The American journal of sciences and arts; Second Series Nr. 

 37_42. New Hawen 1852. Nr. 43-45. New Haven 1853. 

 Fra Professor Dana. 



On cerlain laws of cohesive allraction. 



Conspectus crustaceorum , quae in orbis lerrarum circumnavi- 

 galione, Carolo Wilkes e classe fæderatæ duce, lexit et de- 

 scripsit J. Dana. Cantabrigiæ 1847 — 49. 



On the classification of the cancroidea 1851. 



Crustacea paguridea, megalopidea, macroura, cancroidea &cory- 

 sloidea. 



Characleristics of some new repliles in the museum of the 

 Smithsonian Institution. Dy Baird and Girard. From the 

 proceedings of the Academy of natural sciences of Phila- 

 delphia 1852. 



Fra Lt. Col. Graham. 



Message from the Governor of Maryland transmitting the reports 

 of the joint commissioners and of Lt. Col. Grahams, U. S. 

 Egineers, in relation to the intersection of the boundary 

 lines of the states of Maryland, Pennsylvania & Delaware. 

 Washington 1850. 



