43 
here preserved, is certainly not of an osseous na¬ 
ture.—The pitchy iron ore of Werner, from 
Limoges, may be referred to phosphate of 
manganese.—Ores of manganese:—radiated grey 
manganese, from Ihiefeld, &c. some varieties of 
which resemble the radiated antimony in the 
disposition of their acicular crystals; foliated grey 
manganese; compact grey manganese of various 
forms, botryoida!, tubercular, reniform, &c.; 
earthy grey manganese, a remarkable variety of 
which is the black wad of Derbyshire and De¬ 
vonshire, which has the property of inflaming 
spontaneously when mixed with linseed oil. 
{Case 37 .) In this and the two following cases 
are contained the ores of lead, the most common 
and useful of which is the galena or sulphnret of 
dead: the specimens here deposited include va¬ 
rious modifications of crystals, detached and 
grouped together, in combination with blende, 
pyrites and many other substances; galena of 
various grain, massive and disseminated ; galena 
of corroded appearance, decomposed and rege¬ 
nerated ; the compact and specular variety, call¬ 
ed slickenside by the Derbyshire miners.—With 
these are also placed specimens of the antirnonial 
sulphuret of lead, or triple sulphuret of lead, 
antimony and copper: this substance has been 
called 
SALOON. 
Nat, 
