Puymaurin, to engrave on glass, as artists engrave on copper, with
aquafortis.
M. de la Place has discovered, that the secular acceleration and
retardation of the moon's motion, is occasioned by the action of the
sun, in proportion as his excentricity changes, or, in other words,
as the orbit of the earth increases or diminishes. So that this
irregularity is now perfectly calculable.
Having seen announced in a gazette, that some person had found, in a
library of Sicily, an Arabic translation of Livy, which was thought to
be complete, I got the _charge des affaires_ of Naples here, to write to
Naples to inquire into the fact. He obtained in answer, that an Arabic
translation was found, and that it would restore to us seventeen of the
books lost, to wit, from the sixtieth to the seventy-seventh, inclusive:
that it was in possession of an Abbe Vella, who, as soon as he shall
have finished a work he has on hand, will give us an Italian, and
perhaps a Latin translation of this Livy. There are persons, however,
who doubt the truth of this discovery, founding their doubts on some
personal circumstances relating to the person who says he has this
translation.
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