[ 5 ] 



Heads called T ^rmini^ being ufed by the 

 Romans as Landmarks. 



A large Piece of Terpentine Marble is 

 next to be noticed : It was called Ophites^ 

 from its Refemblance to a Serpent's Skin. 

 This Specimen has a dufky-brown Ground 

 ftreaked with green and pale yellow. This 

 is a hard kind of Marble, of an even 

 Structure, and takes a fine Polifh. There 

 are feveral Species of the Ophites the 

 Ancients had the black and the white 

 Ophites diftinguifhed by the different Co- 

 lour of their Spots, whofe Ground was 

 green, and the grey Ophites diflinguiftied 

 by its Ground Colour, which was pale- 

 grey. We have the greyifh-brown Ophites 

 with green Spots, fometimes faid to be 

 found in England^ and the pale-grey Ophi- 

 tes with green Spots and Veins. The 

 Ophites has been celebrated for its Virtue^ 

 againft venomous Bites, and is at this 

 Time worn in fome Parts of the World 

 as an Amulet. It is ranked among the 

 Jafpers. 



B 3 The 



