which, notwithstanding we are yet ignorant.

I.

_Several Observables in the _six-branched_ Figures form'd on the surface of
Urine by freezing._

1 [11]The Figures were all frozen almost even with the surface of the
_Urine_ in the Vessel; but the bigger stems were a little _prominent_ above
that surface, and the parts of those stems which were nearest the center
(a) were biggest above the surface.

2 I have observ'd several kinds of these Figures, some smaller, no bigger
then a Two-pence, others so bigg, that I have by measure found one of its
stems or branches above four foot long; and of these, some were pretty
round, having all their branches pretty neer alike; other of them were more
extended towards one side, as usually those very large ones were, which I
have observ'd in Ditches which have been full of foul water.

3 None of all these Figures I have yet taken notice of, had any regular
position in respect of one another, or of the sides of the Vessel; nor did
I find any of them equally to exactness extended every way from the center
a.

4 Where ever there was a center, the branchings from it, ab, ac, ad, ae,
af, ag, were never fewer, or more then six, which usually concurr'd, or met
one another very neer in the same point or center, a; though oftentimes not
exactly; and were enclin'd to each other by an angle, of very near sixty
degrees, I say, very neer, because, though having endeavoured to measure
them the most acurately I was able, with the largest Compasses I had, I