Barytes barytes.
Magnesia magnesia.
Potash potash.
Soda soda.
Ammoniac ammoniac.
Argill argill.
Oxyd of zinc zinc.
manganese manganese.
iron iron.
lead lead.
tin tin.
cobalt cobalt.
copper copper.
nickel nickel.
arsenic arsenic.
bismuth bismuth.
mercury mercury.
antimony antimony.
silver silver.
_Note._--All these were unknown to the ancient chemists.--A.
SECT. XL.--_Observations upon Saccholactic Acid, and its Combinations._
A species of sugar may be extracted, by evaporation, from whey, which
has long been known in pharmacy, and which has a considerable
resemblance to that procured from sugar canes. This saccharine matter,
like ordinary sugar, may be oxygenated by means of nitric acid: For this
purpose, several portions of nitric acid are distilled from it; the
remaining liquid is evaporated, and set to cristallize, by which means
cristals of oxalic acid are procured; at the same time a very fine white
powder precipitates, which is the saccholactic acid discovered by
Scheele. It is susceptible of combining with the alkalies, ammoniac, the
earths, and even with the metals: Its action upon the latter is hitherto
but little known, except that, with them, it forms difficultly soluble
salts. The order of affinity in the table is taken from Bergman.
TABLE _of the Combinations of Formic Acid, with the Salifiable Bases, in
197