CONTENTS. 



Observations on some specimens of Vertebrata. By E. D. Cope, 2 



A Monograph of the Alcidte. By Elliott Coues, A. M., M. D... 2 

 List of Birds collected in Southern Arizona by Dr. E. Palmer ; 



with remarks by Elliott Coues, U. S. A 81 



Committees elected for 1868 85 



Descrij)tions of some new species of diurnal Lepidoptera. Series 



III. By Tryon Keakirt 86 



