GALLERY.] NATURAL HISTORY. 159 
ment of one of those which fell Sept. 5th, 1814, at Agen, 
in the Pyrenees, and another of that which descended at 
Juvenas (Ardeche), on June 15th, 1821;—a portion of the 
meteorite which fell at Nanjenoy in Maryland, February 
10th, 1825 ;—three entire stones and a fragment, of those 
that were seen to fall, October 13th, 1838, at Old Bok- 
keveld, at the Cape of Good Hope* (See Philos* Transact, 
for 1839.) 
Among the specimens of native copper (which presents 
a great variety of forms besides the crystallized, such as 
dendritic, filiform, &c.) may be specified the mass from 
Hudson’s Bay, found by Mr. Hearne, and described by 
him in his journal.— Native bismuth , massive, disseminated, 
and dendritic, in jasper, &c .: to which are added, speci¬ 
mens exhibiting the artificial crystallization of the same, 
produced by the sudden cooling of the melted metal.— Na - 
tive lead in lava: to which is added a medal cast in the 
same lead which was ejected by Vesuvius in 1631. 
Case 2. Native silver : among its varieties may be par¬ 
ticularized those exhibiting the various forms in which it 
most frequently occurs, such as tooth-shaped, wire-shaped, 
dendritical, mosslike, &c., many of which are aggregations 
of minute crystals.— Native mercury , and hydrarguret of 
silver or native amalgam; the former chiefly as globules, 
disseminated in cinnabar, sparry limestone, &c.; the latter 
crystallized in perfect and modified rhombic dodecahedrons, 
globular, &c.: to which are added figures and ornaments 
moulded and modelled in amalgam, by the miners of 
Mexico.— Native platinum , massive and as grains: rock 
specimens of the formation in which it occurs in the 
Ural, Siberia.— Palladium and osm-iridium, in a wrought 
state. 
Case 3. Native gold , subdivided into pure and alloyed 
gold; the former chiefly massive, in detached crystals and 
as grains (from Bengal, Guinea, Sumatra, Brazil), and in 
brown iron-stone, in quartz, with needle-ore, &c., from 
Siberia; the alloyed gold (principally from Transylvania) 
crystallized in minute cubes and octahedrons variously 
aggregated, in reticular plates, &C. With these are placed 
a few specimens of the alloys known by the names of au* 
riferous silver and electrum . 
In this Case begin (continued to Case 12) the electro- 
