74 Pepper-Water. 
plainly when the Water is juft evaporatings 
for then they move them nimbly. Now 
and then two of them are feen conjoined* 
as. 3* 
Fourthly , Another Sort appear like flender 
Worms, about fifty Times as long as broad, 
and whofe Thicknefs is about the one hun¬ 
dredth Part of a Hair. Their Motion is 
equable and flow, waving their Bodies gene¬ 
rally but little in their Progreffion. They 
fwim with the fame Facility backwards or 
forwards, and being every where of the 
fame Thicknefs, it is difficult to diftinguifh 
which End the Head is placed at. See 
Fig. IV. 
A fifth Sort are fo amazingly fmall, that 
an hundred of them in a Row would not 
equal the Diameter of a Grain of Sand, and* 
cpnfequently, a Million of them are but 
equal to a Grain of Sand in Bignefs : their 
Shape is almoft round. 
A fixth Sort are about the Thicknefs of 
the foregoing, but almoft twice as long 2 
and, befides thefe, there are doubtlefs other 
Sorts which have not duly been attended 
to. 
It is agreeable enough, while thefe little 
Creatures are before the Microfcope, to ob-= 
ferve the different Effects feveral Kinds of 
Mixtures produce among them. For Ex¬ 
ample, putting to them the fmalleft Drop 
imaginable of Spirit of Vitriol upon the Point 
