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, thermometers, ect. Specific gravity 13.6. Symbol Hg (Hydrargyrum). Atomic weight 199.8. Mercury has a molecule which consists of only one atom. It was named by the alchemists after the god Mercury, and designated by his symbol, mercury.

A rod with one serpent twined around it, thus differing from the caduceus of Mercury, which has two.

salt of wisdom of the alchemists, a double salt composed of the chlorides of ammonium and mercury. It was formerly used as a stimulant. Brande & C.

; a mixture of metals; for example, brass, which is an alloy of copper and zinc. But when mercury is one of the metals, the compound is called an amalgam.

An alloy of mercury with another metal or metals; as, an amalgam of tin, bismuth, etc.

To compound or mix, as quicksilver, with another metal; to unite, combine, or alloy with mercury.

The act or operation of compounding mercury with another metal; -- applied particularly to the process of separating gold and silver from their ores by mixing them with mercury. Ure.

parating precious metals from earthy particles by bringing them in contact with a body of mercury with which they form an amalgam.

Silver ores suitable for treatment by amalgamation with mercury. [Sp. Amer.]

The first principle of metals, i. e., mercury, which was formerly supposed to exist in all metals, and to be extractable from them.

is made in its simplest form by filling a graduated glass tube about 34 inches long with mercury and inverting it in a cup containing mercury. The column of mercury in the tube descends until balanced by the weight of the atmosphere, and its rise or fall under varying conditions is a measure of the change in the atmos…

ess of extracting gold or silver by treating the ore in a revolving barrel, or drum, with mercury, chlorine, cyanide solution, or other reagent.

orine with one or more atoms of another element; -- called also dichloride. Bichloride of mercury, mercuric chloride; -- sometimes called corrosive sublimate.

arms; -- so called from the color of his official robes. -- Blue mass, a preparation of mercury from which is formed the blue pill. McElrath. -- Blue mold, or mould, the blue fungus (Aspergillus glaucus) which grows on cheese. Brande & C. -- Blue Monday, a Monday following a Sunday of dissipation, or itself given t…

ea, barometer 30 in., it is 212 º Fahrenheit; for alcohol, 172.96º; for ether, 94.8º; for mercury, about 675º. The boiling point of water is lowered one degree Fahrenheit for about 550 feet of ascent above the level of the sea. -- Boiling spring, a spring which gives out very hot water, or water and steam, often eject…

uality of rising or floating in a fluid; tending to rise or float; as, iron is buoyant in mercury. "Buoyant on the flood." Pope.

Of or belonging to Mercury's caduceus, or wand.

The official staff or wand of Hermes or Mercury, the messenger of the gods. It was originally said to be a herald's staff of olive wood, but was afterwards fabled to have two serpents coiled about it, and two wings at the top.

Mild chloride of mercury, Hg

of height; esp. of the differences in the height of the upper surfaces of two columns of mercury or other fluid, or of the same column at different times. It consists of a telescopic leveling apparatus (d), which slides up or down a perpendicular metallic standard very finely graduated (bb). The telescope is raised or…