C 2s 1 



The rpecific name, wherever it is afcertained,' fhould b'fe taketl 

 from the animal or plant; that he who difcerns the lapideous 

 protype may be able to know its animal or vegetable e£type, to 

 obferve what is diftindl, ro remove doubts, and to reje6l fuper- 

 fluities. It will likewife be ufeful to exhibit and confider litho- 

 phytes and teftaceoiis fubrtances whofe protypes are unknown, 

 and which may illuftratc the cognifance of nature or the genera- 

 tion of the earth. 



II. IN CONCRETES are determined coagulated fubftances, as 

 ochraceous, marmoreous, gypfeous, ftiriatej fpatofe, argiU 

 laceous, &c. 



III. EARTHS are pulverulent and the niothers of ftoiies, a very* 

 few their offspring. 



Primitive are thofe which are referred to this kingdom from the 

 elements, animals or vegetables. 



Derivative are thofe which have their origin in pulverifed 



ftones. 



VOL. VIL — D 



