25 
(Shelf 2.) Vein materials; various lime¬ 
stones with rake and flat veins composed of 
galena, blende, fluor spar, barytes. See. ; slick- 
ensides of galena and of fluor. 
(Shelf 3.) Bitumens of various consistence, 
separate and on limestone, on fluor spar, See. ; 
elastic bitumens of several degrees of softness. 
{Shelf 4 .) Marbles of various colours, with 
their natural fracture, and polished : white and 
variegated alabaster; efflorescent and other va¬ 
rieties of selenite on limestone. See . ; white and 
coloured clays and porcelain earths. 
{Shelf 5 .) Several varieties of compact lime¬ 
stone : shell and coralline marbles, polished and 
unpolished; porous limestone with siliceous shells, 
called bur, used for hand-mills : tophus. See. 
{Shelf 6.) Hornstone, or chert of various 
kinds, separate and combined with limestone. 
{Shelf l.) A collection of stalactites and 
watricles formed in limestone caverns, some cut 
and polished ; calcareous incrustations, See. 
{Shelves 2 - 3 .) Calcareous spar in various 
forms of crystallization. 
{Shelf 4 .) Several varieties of amethystine 
fluor spar ; most of the pieces cut and polished. 
{Shelf 5 .) Topazine and other varieties of 
fluor spar, with barytes, blende, iron pyrites, 
6 cc., mostly cut and polished. 
I 2 
ROOM VIII. 
Nat. Hist, j 
CASE 
12 . 
{Shelf 
