CONTENTS. 



Rules for the government of Committees in the choice of papers for 



publication. ....... \^ 



List of the odicers of the Society for the year 1825. - - v 



List of the Members of the Society elected since the publication of 



Vol. I. of the New Series of their Transactions. - - - vi 



Obituary Notice. ----.-. is 



No. L 



Descriptions of Insects of the Families of Carabici and Hydrocanthiri 

 of Latreilie, inhabiting North America. By Thomas Say. 



No. IL 



Description and Chemical Analysis of the RetinasphaU, discovered at 

 Cape Sable, Magothy River, Ann Arundel Couaty, Maryland. By 

 G. Troost. ----... 110 



No. in. 



Analyses of the Chrysoberyls of Haddam and Brazil. By Henry Sey- 

 bert 116 



No. IV. 



Geological Account of the Vallpy of tlu- Ohio: in a l':ttcr from Daniel 



DraKc, M.U. to Joseph Correa de oerra. - - - 124 



