altogether. It was very anciently
known, and its combinations have been more studied by chemists than
those of any other acid. These combinations were named _nitres_ by
Messrs Macquer and Beaume; but we have changed their names to nitrats
and nitrites, according as they are formed by nitric or by nitrous acid,
and have added the specific name of each particular base, to distinguish
the several combinations from each other.

TABLE _of the Combinations of Sulphuric Acid with the Salifiable Bases,
in the order of affinity._

_Names of the bases._ _Resulting compounds._
_New nomenclature._ _Old nomenclature._

Barytes Sulphat of barytes Heavy spar. Vitriol of heavy earth.

Potash potash {Vitriolated tartar. Sal
{ de duobus. Arcanum
{ duplicatam.

Soda soda Glauber's salt.
Lime lime Selenite, gypsum, calcareous vitriol.
Magnesia magnesia Epsom salt, sedlitz salt, magnesian vitriol.
Ammoniac ammoniac Glauber's secret sal ammoniac.
Argill argill Alum.

Oxyd of zinc zinc {White vitriol, goslar
{ vitriol, white coperas,
{ vitriol of zinc.

iron iron {Green coperas, green
{ vitriol, martial vitriol,
{ vitriol of iron.

manganese manganese Vitriol of manganese.
cobalt cobalt Vitriol of cobalt.
nickel nickel Vitriol of nickel.
lead lead Vitriol of lead.
tin tin Vitriol of tin.

copper copper {Blue coperas, blue vitriol,
{ Roman vitriol,
{ vitriol of copper.

bismuth bismuth Vitriol of bismuth.
antimony antimony Vitriol of antimony.
arsenic arsenic Vitriol of arsenic.
mercury mercury Vitriol of mercury.
silver silver Vitriol of silver.
gold gold Vitriol of gold.
platina platina Vitriol of platina.

SECT. XIV.--_Observations upon Sulphuric Acid and its Combinations._

For a long time this acid was procured by dis