' 1 8 2 The Natural Hi [lory Part IV. 



may ferve for an Example; whereof 

 fome yield Iron, Sulphur, and Vitriol : 

 others Copper and Alum ; yea Ibme 

 , of them contain all thefe, and feveral 

 more, in the fame Nodule. 



1 hat the Bones, Teeth, Shells, and 

 . other like Bodies, being fuflained in 

 the Water together with thefe Metal- 

 II Part 2. lick and Mineral Corpufcles || , and the 

 fonf. 2. Corpufcles meeting with, and hit- 



ting upon thofe Bodies, they affixed 

 unto them, and became conjoyned with 

 them ; fbme of them ( though this ve- 

 ry rarely ) paffing into their Pores and 

 Interftices : others adhering in Lumps, 

 or Mafles, to their Out-fides, and in- 

 deed oftentimes combining in fiich 

 numbers upon the exteriour Surface of 

 the Shell, Tooth, €^c. as wholly to: 

 cover and involve it in the Mais they 

 together conftituted : and others of 

 them entering into the Cavities of the 

 Echim^ Cochlea^ Comh£, and other 

 Shells, till they had qui|e filled them 

 up ; thofe Shells, by that means, fer- 

 ving as Proplafmes, or Moulds, to the 

 Matter which fb filled them, limiting 

 and determining both the Dimenfions 

 and Figure of it. That accordingly 

 we at this day find feme few of thele 



fbf- 



