s's_, I took out,
were so perfectly formed as they were wont to be about the seventh day, and
after, they so well retain'd their shape and bulk, as to make me not repent
of my curiosity: And some of those, which I did very early this Spring, I
can yet shew you. I know I have mention'd to you an easie application of
what I, some year since, made publick enough; but not finding it to have
been yet made by any other, and being perswaded by Experience, that it may
be extended to other _Faetus's_, which this season (the _Spring_) is time to
make provision off, I think the _Advertisement_ will not seem unseasonable
to some of our Friends; though being now in haste, and having in my
thoughts divers particulars, relating to this way of Preserving Birds taken
out of the Egge, and other small _Faetus's_, I must content my self to have
mention'd that, which is _Essential_, leaving divers other things, which a
little practise may teach the Curious, unmention'd. Notwithstanding which,
I must not omit these two Circumstances; the _one_, that when the Chick was
grown big, before I took it out of the Egge, I have (but not constantly)
{201} mingled with the _Spirit of Wine_, a little Spirit of _Sal
Armoniack_, made (as I have elsewhere delivered) * by the help of
_Quick-lime_: which Spirit I choose, because, though it abounds in a Salt
not Sowre, but Urinous, yet I never observed it (how strong soever I made
it) to coagulate Spirit of Wine. The _other_ circumstance is, that I
usually found it convenient, to let the little _Animals_, I meant to
imbalme, lie for a little while in ordinary Spirit of Wine, to wash off the
looser filth, that is wont to adhere to the Chick, when taken out of the
Egge; and then, having put either the same kind of Spirit, or better upon
the same Bird, I suffer'd it to soak some hours (perhaps some daies, _pro
re nata_) therein, that the Liquor, having drawn as it were what Tincture
it could, the _Faetus_ being remov'd into more pure and well dephlegm'd
Spirit of Wine, might not discolour it, but leave it almost as limpid, as
before it was put in.

* * * * *

_An Extract of a Letter, sent lately to Sir _Robert Moray_ out of
_Virginia_, concerning an _unusual_ way of propagating _Mulberry trees_
there, for the better improvement of the _Silk-Work_; together with some
other particulars, tending to the good of that _Plantation_._

I am disappointed at this time of some Rarities of Mi