WAR DEPARTMENT, 

 Office of Explorations and Surveys, February 14, 1859. 



The General Natural History Keports having been extended so much bej r ond the limits 

 originally contemplated, the War Department has considered it advisable to omit the publica 

 tion of the Eeport on Keptiles. The plates to accompany this report having been prepared and 

 printed, they, &quot;with a brief explanation of the figures composing them, are herewith given. 



A. A. HUMPHREYS, 

 Captain Topographical Engineers, in charge. 



