( 45 8 ) 
met with, to have been found under Ground. And 
firfl, as to thofe Foflile Teeth in my own Colledi- 
on, which unqueflionably once belonged to Elephants, 
I (hall here produce the following. 
N° 116 of my Catalogue of Quadrupeds and their 
Parts, is the dens exertus of an Elephant, which was 
taken up, iz Foot deep, from among Sand, or Loom, 
as they were digging for Gravel by the End of 
Gray's-Inn-Lane , near London , and preferved with 
tying it about with Whale-bones and Tape, to keep 
it from falling to Pieces, by Mr. Conyers , an ingeni- 
ous Apothecary, and a great Collector of Curiohties 
of all Kinds. 
As the greatefl Part of this Tooth was fallen to 
Pieces, nothing could be determined about its Length, 
when entire. The largefl Piece, and alfo the moft en- 
tire, hath five Inches and ~ in Length, and 9 Inches 
and A in Circumference, confequently fomething more 
than 3 Inches in Diameter. This Piece belonged to 
the Bads, or Bottom of the Tooth ; I mean, that Part 
by which it is articulated with the Head, as appears by 
a Cavity in form of a Cone, which all thefe Tusks 
have at Bottom, and which was filled, in this, with 
the Sand of the Gravel-pit wherein it was found. 
The Condition this Tooth was found in, fuggefls the 
two following Remarks. It (hews in the firfl Place, 
how far the fubterraneous Steams are apt to calcine 
Subfiances of this Kind, which was done in this Tooth 
to fuch a Degree, that it was grown extream brittle, 
and ready to fall to Pieces, and had moreover acquired 
an aflringent Quality common to calcined Subftances of 
this Kind, which makes them flick pretty clofe,when held 
to the Tongue. They had altogether the fame effed on 
the 
