23 
(Shelf 5 .) Tin ores: tin stone in a conglome- Room viii. 
rate of a kind of chloritic pebbles, from Cornwall; HlsI< 
various marbles, in square polished pieces, from 
Devonshire. 
(Shelf 6 .) Various marbles, in square polish¬ 
ed pieces, from Spain, &c. cases 
A small collection of minerals from Peru. 7 k 8. 
Empty. case 9 . 
DERBYSHIRE MINERALS. 
A collection of Derbyshire minerals, formed by case 
Mr. White Watson, partly arranged according to 10 . 
thesuccession of strata in which they are found. 
(Shelf I .) 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. 
(Shelf A.) Varieties of sandstone ; breccias ; 
granite; shales ; rotten stone, &c 9 
(Shelf 0 - 6 .J Several varieties of limestone, 
most of them with petrifactions, such as entro- 
chi, cockles, &c.; several varieties of hornstone, 
or chert. 
(Shelf \.) Various vein materials : combina- case 
tions of galena, limestone, barytes, blende, fluor 11 • 
spar, See.; breccias of limestone, hornstone, &c. 
1 2 (Shelf 
/ 
