NATURAL HISTORY. 
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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.—iV«- 
iive 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.— mercury, and hydrarguret of 
silver or native amalgam; the former chiefly as globules, 
disseminated in cinnabar, sparry limestone, 8zc.; 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. 
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,--^ Native platinum, massive and 
as grains: rock specimens of the formation in which it occurs 
in the Ural, Siberia.— Osm-iridium, m 2 i wrought state. 
In this Case begin (continued to Case 12) the electro¬ 
negative metallic substances (metalloids), and their not 
oxidized combinations. — Tellurium and tellurets : the 
scarce native tellurium, which (like sulphur and sele¬ 
nium, &c.) has the property of mineralizing several metals, 
combining with them as electro-negative substance: with 
bismuth (formerly called molybdena-silver, and considered 
by Esmark as native tellurium); with lead (foliated tel¬ 
lurium, or nagyag ore); with silver and lead (white and 
partly yellow tellurium); with silver and gold (graphic 
tellurium or schrift-ertz of authors).— Native antimony 
from Dauphiny, and antimonial silver or stibiuret of silver 
from the Hartz, &c. 
