Of the Hair-like Injeff. 235 
to fhift the Points of a Pair of Compares in 
that Manner may immediately be fatisfied. 
All its Motions are extremely flow, and 
require much Patience and Attention in the 
Obferver. It has neither Feet, nor Fins, nor 
Hairs, but appears perfe&ly fmooth and 
tranfparent, with the Head bending one 
Way and the Tail another, fo as to be like a 
long Italian f: nor is any internal Motion, 
or particularly opake Part to be perceived, 
which may determine one to fuppofe it the 
Stomach or other of the Inteftines. 
Thefe Creatures are fo fmall that Millions 
of Millions might be contained in an Inch 
Square. When viewed fmgly, or feparated 
from one another, they are exceedingly 
tranfparent, and of a lovely green *, but like 
all other tranfparent Bodies, when Numbers 
of them are brought together they become 
opake, and lofe their green Colour, in pro¬ 
portion as the Quantity increafes, till at lafl* 
they appear intireiy black. 
■ They were firfl; difeovered in a Ditch at 
Norwich , one End whereof communicates 
with the River there, and the other End 
with a fecond Ditch, into which feveral 
Kennels empty themfelves from different 
Parts of the City. The Length of this Ditch 
is at lead an hundred Yards, and its Breadth 
nine: the Bottom, for more than a Foot in 
Depth, is covered with a blackifh green Sub- 
fbanee, in Appearance like a Mud, made up 
wholly 
& 
