VU 



person shall have the preference who shall ultimately 

 offer the higher advanced price, 



111 conclusion, we have first to acknowledge our 

 ohlig^atioii to W. Swainson, Esq. for his descrip- 

 tions of four new species of the Genus Mitra; in 

 the knowledge of which, having made it his particu- 

 lar study, every Conchologist will readily acknow- 

 ledge Ms pre-eminence: secondly, to state that this 

 Catalogue has been written under such numerous 

 disadvantages, that we have reason to fear some 

 important errors may have crept in, for which we 

 trust every allowance will be made by the candid 

 scientific reader. 



156, Recent Street., 



