TRANSACTIONS OF SECTION C, 



583 



rather smaller, but has pressed into its service the third incisor tooth as an 

 auxiliary canine. We may infer from this that, if we could find an earlier evolu- 

 tion of the animal, the lower canine would be larger at the expense of the adjoining 

 incisor tooth, as the upper canine is in respect of the premolar tooth. 



The remains were determined by Professor C. Stewart, of the Hunterian 

 Museum, College of Surgeons. 



Dimensions of Mandible of Felis brevirostris, in inches. 



Length of jaw 4-54 



„ of molar series \-^2 



Camassial, length 064 



„ posterior transverse diameter .... 0"265 



„ anterior transverse diameter .... 0'27 



„ height 0-365 



Second premolar, length 050 



„ transverse diameter 0-25 



„ height 0-34 



First premolar, length 039 



„ transverse diameter 0-225 



„ height 0-265 



Depth of jaw at carnassial 83 



„ „ premolar 2 0-855 



„ „ premolar 1 089 



Thickness of jaw at carnassial 041 



„ „ premolar 2 0-41 



„ „ premolar 1 0-40 



Depth at symphysis 1-335 



Breadth at symphysis (i-51 



From canine to carnassial ) 29 



„ to premolar 1 0-445 



Interval between premolar 1 and 2 0-075 



Antero-posterior diameter of canine at alveolar border . 004 



Transverse diameter of canine at alveolar border . . . 0-03 



Dimensions of Superior Maxilla (left) of Felis brevirostris. 



Length of jaw 2-835 



Posterior tubercular molar, length 0-27 



„ thickness 014 



depth 0-12 



Carnassial, length 0-755 



„ breadth 0-36 



„ height 0-435 



Premolar, length (internal) 049 



„ thickness 0-26 



„ depth 0-37 



Third lateral incisor to premolar ...... 1()5 



Alveolus of canine to premolar 0-33 



Antero-posterior diameter of alveolus of canine . . . 0-455 



From anterior border of jaw to anterior palatine foramen . 0-56 



Measurements of Radius. 



Extreme length .... 

 Greatest diameter at distal extremity 

 Lesser diameter at distal extremity 

 Greater diameter proximal end 

 Lesser diameter proximal end 

 Least circumference of shaft 



6-72 

 1.30 

 0-68 

 0-76 

 0-52 

 1-325 



At the rear of the Robin Hood cave is a natural tunnel 18 feet long filled with 

 red sand, which led into a cave 50 feet long, 30 feet broad, and 11 to 27 feet high, 

 silted up to within a short distance of the roof. In a descending aeries this 



