174 



TRANSACTIONS OF THE 



North, the latter of South Carolina, under the autho- 

 rity of their respective state Legislatures, have for some 

 time been before the public; their interesting and 

 practically important results have been well received 

 and duly appreciated. 



The work of Messrs. Jackson and Alger, of Boston, 

 on the geology and mineralogy of Nova Scotia, under- 

 taken at the private expense of the authors, and accom- 

 plished with much labor, is a very creditable produc- 

 tion. 



We may refer also for interesting geological details 

 connected with the formations west of the Mississippi, 

 to the observations of the naturalists who accompanied 

 Major Long's Expedition to the Rocky Mountains, and 

 to essays of Messrs. James, Say and Nuttall, published 

 in the Journal of the Academy of Natural Science of 

 Philadelphia; to the meritorious pages of this volume, as 

 well as to the Annals of the Lyceum of Natural History 

 of New York, and to the American Monthly Journal of 

 Geology &c, we refer for many rich contributions to 

 American Geology. 



Mr. P. A. Brown, of Philadelphia, has been for some 

 time occupied, and will shortly publish, with a chart, 

 a Geological Observations on the Schuylkill, " from Phi- 

 ladelphia to the northern boundary of Montgomery 

 county. 



Mr. T. A. Conrad and Mr. I. Lea have recently con- 

 tributed many new species of fossil testacea, which tend 



