[ 3° 3 3 
Explication of the Figures. 
Table III. 
Thelirft three Figures exhibit three Views taken from 
feveral. Parts of the great Stone found in the 
Horfe. 
Figure i. 
Reprefents a Fragment of it, containing Part of the 
Nucleus and the adjoining Shells or Jncruffations. 
a> The Nucleus or Center. 
bb 9 The firft Stone or Incruftation formed upon 
the Nucleus. 
ccccy The fecond Incruftation, cover'd with a 
fmooth Shell or Coat dd . 
ee, The third Incruftation, which appears through 
the broken Shell of Fig, 2. 
ffff The fmooth Shell or Coat of this Incrufta- 
tion, which forms the Outftde of Fig . 2. 
hhhhy The fourth or outermoft Incruftation, con- 
fiding of three Layers or Shells. 
Fig . 2. Shews the external Surface of the third In- 
cruftation. 
ffff The Shell almoft intire, but broken off 
gg. 
ee 3 Part of the third Incruftation. 
Fig. 3. Shews a Fragment confiding of Part of the 
three outermoft Shells of the fourth Incruftation. 
The 
