TAB. X. 



Iguanodon Mantelli, nat. size. 



Fig. 



1. Inner side of part of the left mandibular ramus, showing part of thin inner 



alveolar wall (12), of a young Iguanodon. 



2. Upper view of ditto. 



3. Under view of ditto. 



4. Outer side of ditto. 



In each figure, 1 to 15 indicate the alveolar depressions in the outer wall. 



5. Inner side of apex of crown of the successional tooth (6, fig. 1), magnified. 



6. Inner side of apex of crown of the successional tooth (12, fig. 1), magnified. 



Discovered by the Rev. W. Fox, MA,, in the Wealden, near Brixton, Isle of 

 Wight. 



