Drawing of the Crotalus, &;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. oe 
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 snptaved, at my request, in a stiff (and rather artificial) manner, 
which the drawing would not warrant. A. E. 
