A limited number of copies of each Bulletin were stamped with the 

 date of publication on the "Advertisement" page. Numbers 58 and 60 had 

 the date printed on the title page. 



The Contributions to Zoology also have a limited number stamped 

 with the exact date of publication. These dates have been cross-checked 

 with the typed tables of contents in the bound set in the Smithsonian 

 reference collection. 



If no specific date is included with the citation, it indicates that 

 one could not be determined; two dates indicates disagreement between the 

 dates stamped in two individual copies and the first date given is assumed 

 to be correct. 



For some of Cope's earlier papers in the Smithsonian series, I 

 utilized the following reference to help determine proper dates: 



Osborn, Henry Fairfield. 1930. Biographical memoir 

 of Edward Drinker Cope 1840-1897. Nat. Acad. Sci. 

 Biogr. Mem. 13(3) : 127-317 . 



Cope's annotated bibliography is found on pp. 172-317 and an explanation 

 of the extensive research on publication dates and titles of Cope's many 

 papers is given on p. 172. 



AVAILABILITY 



The publications on this list ARE NOT available for sale from the 

 Division of Reptiles and Amphibians or the National Museum of Natural 

 History or the Government Printing Office. 



