C I2 4 ] 
an Afh-colour, as the Core or Center on which 
this Stone was form’d. 
bbbby are feveral almoft concentric Lines, nearly 
anfwcring to the Shape of the Pebble in the Cen 
ter, and refemble, the different Coats of an Onion,, 
fhewing the progreflive Accretion of the feveral 
Lamina or Strata , of which this Stone is com- 
pofed. 
cccc , pyramidal Spaces of a darker Colour, and 
more compad Texture than the intermediate lighter- 
coloured Spaces, whole Bafes arife at the outer 
Circumference and form the Emboffments there, 
and whofe Points all tend towards the Center of 
the Stone ; both the Outfide and Inftde of thefe 
Stones are of a light Oker-colour diluted with a 
little white ; the Pyramids being about 2 Shades 
darker than the reft of the In- or Outfide. 
Fig. 4. another of the fame fort fawn in two, in 
the Center of which is lodged a Fruit or large 
Seed, about the Size and of the Shape of an Acorn, 
having a thick Husk on the Outfide. 
Fig. y. a Coin of Domitian in fmall Brafs, having 
on the Forefidc, the Figure of a Rhinoceros with 
2 Horns growing out of his Nofe, the one above 
the other j which in the Numifmata Pembrokiana> 
Part 1. Tab. XVI. n. 68. the Engraver has made 
like a Tusk or Dens txertus of a Boar, and in 
Part 3. Tab. 35?. he has made the 2 Horns on 
his Nofe like 2 Tusks, and has likewife given him ' 
2 Horns clofe to his Ears ; fo that he has made 
him a Creature with 4 Horns j and therefore it 
was thought proper to give an accurate Copy of 
the 
