ewith it is mixed, and which easily penetrates into these
stones, because their substance is spongy and cretaceous, and adheres to
the tongue as hartshorn.

It is in these stones that not only the eyes and tongues of serpents are
found, but also their viscera and other parts: as lungs, liver, heart,
spleen, ribs, and so resembling life, and with such natural colours,
that one may well doubt whether they are the work of nature or art; the
figure of the eyes and tongues is very different. Some are elliptic,
but, for the greater part round: some represent an hemisphere, others a
segment, others an hyperbola. The glossopetrae are naturally of a conic
figure, representing acute, obtuse, regular, and irregular cones. They
are also of different colours, especially the eyes; for some of them are
of an ash-colour, others liver colour, some brown, others blackish; but
these, as most rare, are most esteemed. Bracelets are frequently made
of them and set in gold: some representing an entire eye with a white
pupil, and these are the most beautiful. Several are likewise found of
an orange colour.

The virtues attributed by the Maltese to those eyes and tongues, and to
the white earth which is found in the island, particularly in St. Paul's
cave, and which is kept for use by the apothecaries, as the American
bole, are very singular; for they reckon them not only a preservative
against all sorts of poison, and an efficacious remedy for those who
have taken poison, but also good in a number of diseases. They are taken
internally, infused in water, wine, or in any other convenient liquor;
or let to lie for some hours in vessels made of the white earth; or the
white earth is taken itself dissolved in those liquors. The eyes set as
precious stones in rings, and so as to touch immediately the flesh, are
worn by the inhabitants on the fingers; but the tongues are fastened
about the arm, or suspended from the neck.

Paul Bucconi, a Sicilian nobleman, treated this notion of the eyes and
tongues of serpents as a mere vulgar error; and maintains that they
either constitute a particular species of stone produced in the earth,
or in the stones of the island of Malta, as in their matrix; or that
they are nothing more than the petrified teeth of some marine fish;
which is also the opinion of Fabius Columna, Nicholas Steno and other
physicians and anatomists.

It seems to this noble author that the glossopetrae should be classed in
the animal kin