4 °4 Luminous Water tnfedi* 
ing all the Motion that could be given if, 
wnilft the Linen appeared covered with 
numberlefs lucid Particles, thereby proving 
the Light to be fomething diftindt entirely 
from the Water, 
Then examining fome of the Sea Weeds, 
he perceived thirty at leaft of the like lhiri« 
ing Particles upon every little Leaf, and (bak¬ 
ing them over a Sheet of Paper, one of the 
fhining Bodies was thrown upon it, which 
being wrapped tip in the Paper emitted 
Light quite through it. Unfolding the Pa¬ 
per, and viewing this luminous Body atten¬ 
tively, he found it far lefs than a fmail Hair, 
extremely delicate and tender, and of a deep 
yellow Colour : and by the Help of a MU 
crofcope he discovered it to be a living Ani¬ 
malcule, of a curious and fingular Structure, 
and could not enough admire the Splendour 
of its Light. It was fomewhat like a Ca¬ 
terpillar, and cofififted of eleven Segments 
or Ringlets, along which near the Belly were 
a Kind of Fins or Inftruments of its feveral 
Motions. From its Head iftued two Horns, 
and the Tail appeared twilled* 
He obferVes, that thefe glittering Sea W;a- 
ter Infedts ate entirely luminous, whereas 
the Glow-worm emits Light only from a 
Part about the Tail; and, moreover, that 
when at reft they do not Ihine at all, though 
they fend forth a prodigious Brightnefs as 
loon as their little Bodies become agitated. 
Hence 
