MINERALOGY, 261 



a. Changed and filled with folid lime- 

 ftorie, 



1. Tn form of animals. 



2. In form of vegetables. 



Found in the ifland of Gottland. 

 J. Changed into a calcareous fpar, Pe~ 

 ire faff a calcarea fpatofa. 

 j. In form of animals. 



The fhells in Balfberget in the 

 province of Skone. 

 2. In form of vegetables *. 



SECT. CCLXXXII. 



B. Extraneous bodies changed into a flinty 

 fubfcance. Siliceous changes, Larv* JiUce*e* 

 Thefe are like the flint, 

 1. Indurated, Petrefafta filicea. 

 c. Changed into flints. 



* Shell* acd corals are indeed compofed of limy matter, 

 even when their animals ilill dwell in them ; neverthelefs, al- 

 though they are not changed in regard to their principle, yet 

 are they reckoned among the petrefaclions, as foon as the 

 particles of the calcareous Jubilance have got a new fituation ; 

 for example, when they are become fparry, when they have 

 been tilled with a calcareous earth, either hardened or loofe, 

 or when tht-y lie in the flrata of the earth. Thefe form 

 the greatef; part of foiTil, collections, which are fo induftrioufly 

 mace, often without any regard to the only and principal fife 

 they can be of, viz. that of enriching zoology. Mineral ills 

 are Satisfied with feeing the poffibility of the changes the lime- 

 flor.e undergoes in regard to its particles, and aifo with re- 

 ceiving fome inlight into the alterations which the earth has 

 been fubjeci to, from the ftrati which are now found in it. 



The calcined fhells, or thofe which have been changed into 

 limy and chalky matter, are fit to make lime, and are ftill 

 more ferviceablc as a manure. The indurated fervc only to 

 make grottos. No gypfeous.petrefaclions are known, if fuch 

 are not found in the Perfian alabafter ; for Mr. Chardin fays, 

 that he has feen a lizard included in that Hone. 



S 3 i, Carnelians 



