37 
deposited in the following table-case.— White 
silver ore. 
Case 31. The ores of silver contained in this 
case are the dark and light-coloured varieties of 
red or imhy silver ore^ massive, crystallized, and 
in combination with various substances 5 the black 
silver ore^ov sooty silver, which has not been ana¬ 
lysed;—the muriate of silver also corneous 
silver and horn ore, of various colours, amorphous, 
botryoidal, in laminae, and crystallized in minute 
cubes and octahedrons;—-the very scarce carbo¬ 
nate of silver called grey silver ore, from Alt- 
Wolfach in Suabia, &c.'—In this case begin the 
numerous copper ores : among the specimens of 
native copper (which, like the native silver, pre¬ 
sents a great variety of forms besides the crystal¬ 
lized, such as dendritic, filiform, &c.) may be spe¬ 
cified the mass from Hudson’s Bay, found by Mr* 
Hearne, and described by him in his journal. 
Case 32. Ores of copper continued: common 
sulpliuret of copper or vitreous copper, variously 
crystallized, foliated, compact, &c. To this are 
also commonly referred the oblong, scaly, se¬ 
condary fossils, known by the name of Franken- 
berg corn ears^ which occur in the bituminous 
marl-slate of Frankenberg in Hessia, and are 
principally composed of vitreous and grey cop¬ 
per.—The variegated copper ore,^ easily known 
by the reddish colour of its fractural planes, mas¬ 
sive and foliated.—The grey copper ore (fahl 
ore). 
SALOON. 
Nat. Hist. 
