178 
fracture, and in some parts we see the stalactitical form of 
infiltration, as it were, into the exquisite mould formed by 
nature around the animal remains of organization. I was 
favoured with this specimen by Charles Stokes, Esq. It 
was picked up in Wiltshire. 
The specimen figured beneath is very hike Madrepora 
ananas of Solander and Ellis, tab. 47, fig. 6, said by 
Gmelin to be found in the Mediterranean sea, and in 
America, and frequently fossil... It is nearly whole, 
having been bounded by a sort of shapeless rocks when 
formed by the animal inhabitants. This is, if possible, more 
perfect than the last; but its dingey appearance might 
give us reason at first to suspect it to be the remains of © 
some old Coral, for it has very little of the appearance of 
Carbonated Lime. It was sent me from Kendal Fell in 
Westmoreland. 
The lamine of the nuclei are often curved in these spe- 
cimens, and more irregular than in the spines of Echint, 
which, as in those figured tab. 151 and 152, have them 
universally as regular even in the minutest of their parts 
as in the metastatic crystal. 
