rees of that Country; there being found innumerable
little holes in the ground, out of which those Insects broke forth in the
form of _Maggots_, which turned into _Flyes_ that had a kind of taile or
sting, which they struck into the Tree, and thereby envenomed and killed
it.

The like Plague is said to happen frequently in the Country of the
_Cosacks_ or _Ukrani_, where in dry Summers they are infested with such
swarms of _Locusts_, driven thither by an _East_, or _South-East_ Wind,
that they darken the Air in the fairest weather, and devour all the Corn of
that Country; laying their Eggs in _Autumn_, and then dying; but the Eggs,
of which every one layeth two or three hundred, hatching the next Spring,
produce again such a number of Locusts, that then they do far more mischief
than afore, unless Rains do fall, which kill both Eggs and the Insects
themselves, or unless a strong _North_ or _North-West_ Wind arise, which
drives them into the _Euxin_ Sea: The Hogs of that Country loving these
Eggs, devour also great quantities of them, and thereby help to purge the
Land of them; which is often so molested by this Vermine, that they enter
into their Houses and Beds, fall upon their Tables and into their Meat,
insomuch that they can hardly eat without taking down some of them; in the
Night when they repose themselves upon the ground, they cover it three, or
four Inches thick, and if a Wheel pass {138} over them, they emit a stench
hardly to be endured: All which, and much more may be fully seen in the
_French_ Description of the Countries of _Poland_, made by _Monsieur de
Beauplan_, and by _Monsieur Thevenot_, in his Relation of the _Cosacks_,
contained in the First part of his _Curious Voyages_.

* * * * *

_An Observation touching the Bodies of Snakes and Vipers._

Several have taken notice, that there is a difference between the brooding
of Snakes and Vipers, those laying their Eggs in Dung-hills, by whose
warmth they are hatched; but these (Vipers) brooding their Eggs within
their Bellies, and bringing forth live Vipers. To which may be added, That
some affirm to have seen Snakes lye upon their Eggs, as Hens sit upon
theirs.

* * * * *

_Some Observations of odde Constitutions of Bodies._

A very curious Person, studying Physick at _Leyden_, to whom had been
imparted those Relations about a Milky Substance in Veins, heretofore
alledged in _Numb._ 6. ret