of Corals, tfr. P5? 



Upon throwing a Fragment of it on the Table, it founded 

 like a Piece of a Tobacco-pipe. 



With fome Difficulty, I cut off a thin Slice, which I put 

 into Vinegar, on which a ftrong Effervefcence enfued ; and, 

 when the Vinegar had been changed two or three Times, I 

 found the cretaceous or ftony Matter was depofited, and only 

 the Membranes, that inclofed the LamincB^ remained ; fo 

 that it appeared to me as much of the Nature of Coral, as 

 of Bone or Ivory. 



At Kt is a Figure of the EncrimSj or Lilium Lapideum ; 

 which, whether it may not be the petrified Exuvicz of this 

 Animal, is fubmitted to the Confideration of the Curious 

 in Foflils ; for they have not yet been able, I apprehend, to 

 fix upon any thing more probable. 



The Difference that appears to me, upon confulting "Ro- 

 finus^ a Germa7i Author, who has publifhed a Treatife at 

 Hamburgh particularly on this curious Foffil, is, that the 

 Encrinos has rather been a Species of Star-fifh, with a jointed 

 Stem or Tail} and tiie Rays of the Star, inftead of having 

 Tmtacula^ or Claws, at the End of each, like our Polype, 

 are furniQied with Ranges of jointed Fibres, along the Infide 

 of each Ray like a Brufii ; of which the fame Author has 

 oiven a curious Plate, with a particular Defcription of this 

 extraordinary FolTil. 



So diat this curious Polype, is rather, I fhould think, of 

 another Genus, and feems to be intirely unknown to us till 

 now. 



O 2 CON- 



