84 Of Rain-Water, 
the leaf! Filament or String, they were en¬ 
tangled in it, and then would extend their 
Bodies into an oblong Round, and ftruggle 
hard to difengage their Tails. He obferved 
a fecond Sort of an oval Figure, and ima¬ 
gined the Head to hand at the (harped: End. 
The Body was flat, with feveral fmall Feet 
moving exceeding quick, but not difcernible 
without a great deal of Attention. Some¬ 
times they changed their Shape into a perfect 
Round, efpecially when the Water began 
to dry away. He met alfo with a third Sort 
twice as long as broad, and eight Times 
fmaller than the ftrft: vet in thefe he dif- 
cerned little Feet, whereby they moved very 
nimbly. He perceived likewife a fourth Sort, 
a iboufand Times fmaller than a Loufe’s Eye, 
and which exceeded all the reft in Brifknels : 
he found tHefe turning themfelves round, as 
ft were upon a Point, with the Celerity of a 
Top. And he fays there were feveral other 
Sorts. 
\ ' ' ' - . : , 
It is common, in Summer-time, for the 
Water that (lands in Ditches to appear fome- 
times of a greenlfh and fometimes of a red- 
diflV Colour which, upon Examination 
c - ' - with 
—nr. . .. . . r i m. . . .° t--t -,ur„ n, I 
* The Infedts that mo ft commonly difcclour the Waters 
are of the Shrimp Kind,' called by Swammerdam Puiex 
aquaticm arborefcens, from the branching out of their little 
Scorns; they are pften fo numerous in ftagnating Waters, 
|n May or Junes at which time they copulate, as to make 
; ; ... -, • ' . • them 
