(62) 
the banks of the river Dart, a fresh discovery of 
Arragonite has been made very recently; some of 
the specimens of which, assume, I am told, a per- 
fect form of crystalization. Those which I have 
seen, appear to be Dodecaedrons; consisting of two 
six-sided pyramids, joined base to base, and very 
much elongated. 
