40 C O N C H O L O G Y. 



This author has, in the firfl: part of the 

 work, not only treated his fubje6t philo- 

 fophically, but alfo oeconomically, in ten 

 chapters, and a prehminary difcou-.fe on 

 the formation of Shells, the different me- 

 thods of arrangement, the manner of clean- 

 ing them, their ufes, on foffil Shells, and 

 their origin, and an account of the prin- 

 cipal Mufea of Natural Hiftory now in 



)eing. 



The other part is the hiftory of the 

 Shells, ranged in their refpeftive clafies, 

 with proper tables and charaders. Indexes, 

 and remarks to each. The plates are 

 twenty-nine in number, for the moft 

 part elegantly and corre£lIy engraved from 

 tlie author's own defigns. Twenty-eight 

 of them amount to near five hundred 

 figures of recent (l^iells; the laft, or twen- 

 ty-ninth plate, is of foffil Shells. The 

 defcriptions of the Shells which accom- 

 pany the plates are generally top concife 

 or rather imperfect. 



This 



