42 
SALOON. 
Nat. Hist. 
among the specimens of the latter are, the mass¬ 
ive variety from New Jersey, and several earthy 
varieties, in clay, wood, peat, &c. To these is 
added the ilvait (the yenite or jenite of some 
mineralogists), which is enumerated by Haiiy 
among the ores of iron, under the appellation 
of fer siliceo-calcaire . 
Case 41. In this and the two following cases 
are contained the ores of lead, the most common 
and useful of which is the sulphuretoflead , or ga¬ 
lena; the specimens here deposited include vari¬ 
ous 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 re¬ 
generated ; the compact and specular variety, 
called slickenside by the Derbyshire miners.— 
With these, is also placed the antimonial sulphu - 
ret of lead, or triple sulphuret of lead, antimony, 
and copper, called endellmi by Count Bournon. 
TSee British Collection : Cornwall.] 
Case 42. Ores of lead continued:—the more 
prominent specimens in this case are those of car¬ 
bonate of lead, or white lead, among which may 
be particularized the laminar varieties, the beau¬ 
tiful modifications from Siberia, and the crystal¬ 
lized acicular white lead from the Hartz, accom¬ 
panied with green and blue carbonates of copper; 
the fine light blue variety coloured by copper, 
&c.; 
