Prof. H. G. Seeley. On the Nature and Limits [Apr. 26, 

 Fig. h 



Lateral aspect of an incisor tooth, Deuterosaurus, Brit. Mus., R. 303. 

 Fig. 2. 



Lateral aspect. Posterior aspect. 



Incisor tooth, Glaridodon. — Brit. Mus., 49425. 



