B. L. Moodie — Vertebrae of a Dinosaur. 



531 



tumor. Its nature is of course uncertain, but it is an interest- 

 ing thing that in the Coinanchic pathological processes should 

 have produced results which are to all appearances the same 

 as occur today. 



My purpose in describing this unusual lesion in this place is 

 to call the attention of paleontologists to the desirability of 



Fro. 1. 



describing such of these objects as come to their attention in 

 order that their possible value may be available for those who 

 are interested in the study of the nature and origin of disease. 

 This will be entirely new matter for the student of modern 

 pathology and may be of great service. Then too it will 

 broaden the scope and usefulness of paleontology. 



Department of Anatomy, 



University of Illinois, Chicago. 



