Drawing of the Croialus, ^c. 



Mr. Eaton, having seen the last proof of the drawing of his sup- 

 posed fossil crotalus or arundo, requests that the following remarks 

 may be added. 



The figure is stiffly accurate, as the original appears when mag- 

 nified ; though it is the natural size. I preferred this to having it 

 shaded ; as it affords a better opportunity for accurate comparison. 

 It is engraved, at my request, in a stiff (and rather artificial) manner, 

 which the drawing would not warrant. A. E. 



