24 
room vin. {Shelf 5 .) Tin ores: tin stone in a conglome- 
NatThIst. rate a kind of chloritic pebbles, from Cornwall; 
various marbles, in square polished pieces, from 
Devonshire. 
CASES 
7 & 8. 
CASE 9. 
{Shelf 6.) Various marbles, in square polish¬ 
ed pieces, from Spain, &c. 
A collection of minerals from Peru. 
Empty. 
DERBYSHIRE MINERALS. 
pASE A collection of Derbyshire minerals, formed by 
Mr. White Watson, partly arranged according to 
the succession of strata in which they are found. 
{Shelf 1.) Peat; argillaceous grit; clays. 
{Shelf 2.) Argillaceous ironstones, and ferru¬ 
ginous clays, with and without petrifactions. 
{Shelf 3 .) Nodules of argillaceous ironstone : 
septaria ; several varieties of coal. 
(Shef 4 .) Varieties of sandstone; breccias; 
granite ; shales ; rotten stone, &c. 
{Shelves 5 - 6 .) Several varieties of limestone, 
most of them with petrifactions, such as entro- 
chi, cockles, &c.; several varieties of hornstone, 
or chert. 
case {Shelf l.) Various vein materials : combina- 
H* lions of galena, limestone, barytes, blende, fluor 
spar, &c.; breccias of limestone, hornstone, &c. 
(Shelf 
