NATURAL HISTORY. 
Micacrous Iron—some varieties of this approx- 
itmate very closely to Graphite ; Hennock, 
Lustleigh, &c.—in veins. 
HEMATITE. 
- Brown—IUsington. 
Bog Iron. 
Frequent in low swampy bottoms im the 
Slate district. 
CARBONATE OF Iron. 
Haytor mine, Ashburton Down mime &c. 
Scaly red glance Iron vesting Quartz is 
met with in the Buckland Woods, and 
shell Iron on Haldon, and on ‘Teigngrace 
heathfield. On the downs round the hazel 
rocks, and Buckland Beacon, fragments of 
stone containing iron, shorl, and asbestus 
are met with strewed on the surface that 
possess considerable magnetic power. 
OXIDE OF MANGANESE, 
Massive and Crystallized. 
Radiated, In the localities previously 
Mammellated, 5 given. 
Oxipe oF TIN. 
Granular and crystallized—Ashburton Down 
mine—Tin pebbles also occur occasion- 
ally in old stream works, 
CopPeER. 
Native. 
“‘ Hyner—Frequently associated in the 
same vein with carbonate of lead.”’ J. G, 
Croker, Esq. 
