nt to examine, what _Figure_, and _Celerity_ of _Motion_
begetteth, or encreaseth _Light_ and _Flame_._

This was communicated by Dr. _Beale_, as follows;

_May_ 5. 1665. fresh Mackrels were boyl'd in Water, with salt and sweet
herbs; and, when the Water was perfectly cold, the next morning, the
Mackrels were left in the Water for pickle.

_May_ 6. more fresh Mackrels were boyl'd in like Water; and _May_ 7. both
Water and Mackrels were put into the former Water, together with the former
Mackrels. (Which circumstances I do particularize, because, whether, the
mixture of the pickle of several ages, and a certain space of time, or
whatever else was necessary, and wanting, the trial did not succeed with
like effect at other times).

But now on the next _Munday_ (_May_ 8). evening, the Cook stirring the
Water, to take out some of the Mackrels, found the Water at the first
motion become very luminous, and the Fish shining through the Water, as
adding much to the Light, which the water yielded. The water by the mixture
of Salt and Herbs, {227} in the boyling, was of it self thick and rather
blackish, than of any other clear colour: yet being stirr'd, it shin'd, and
all the fish appear'd, more brightly luminous in their own shapes.

Wherever the drops of this water (after it was stirr'd) fell on the Ground,
or Benches, they shin'd: And the Children took drops in their hands, as
broad as a penny, running with them about the house, and each drop, both
near and at distance, seem'd by their shining as broad as a six pence, or a
shilling, or broader.

The Cook turn'd up the side of the Fish, which was lowest, and thence came
no shining: and after the water was for some good time settled, and fully
at rest, it did not shine at all.

On _Tuesday_ night (_May_ 9). we repeated the same Trial, and found the
same effects. The water, till it was stirr'd, gave no light, but was thick
and dark, as we saw by day-light, and by candle-light. As soon as the
Cook's hand was thrust into the water, it began to have a glimmering; but
being gently stirr'd by the hand moving round (as the Dairy-maid do to
gather the Curds for Cheese) it did so shine, that they, who look'd on it
at some distance, from the farther end of another room, thought verily, it
was the shining of the Moon through a Window upon a Vessel of Milk; and by
brisker Circulation it seem'd to flame.

The Fish did then shine as well from the Inside, as the Outside, and
chiefly fr