PREFACE TO THE SUPPLEMENT. 



Principal frontal bone. 

 Parietal. 

 Inter occipital. 

 Inter parietal. 

 Operculum. 

 Sviboperculum. 

 Interoperculum. 

 Preoperculum. 

 Temporal. 

 Tympanal. 

 Sympletic. 

 . Jugal. 

 y. Dental portion of the lower 



n. Posterior frontal, 

 n*. Anterior fiont.il. 

 o. Great ala. 

 p. Sphenoid, 

 q. Internal pterygoid- 

 r. Transverse, 

 s. Palatal bone, 

 t. Vomer, 

 u. Nasal. 



V. Superior maxillary. 

 w. Inter maxillary. 

 X. Articular portion, and 

 jaw, or inferior maxillary bone. 



This Supplement is divided into two parts that each sepa- 

 rate part may be bound up, if required, with the particular 

 volume to which it more exclusively belongs. All the wood 

 eno-ravings in the Supplement have been executed by Mr. 

 Vasey. 



Ri/der Street, March, 1839. 



