23S Of the. Hair-like InfeB . 
peared marching upwards in Rows, after the 
Manner re ore fen ted N* IV. h and that fome 
of them had travelled to the Biftance of 
three or four Inches, which coniidering the 
Slownds of their Motion, and their Method 
of moving forwards, muff be looked upon 
as a long journey. 
In about two Days great Numbers had 
travelled up the Side of the jar, to above the 
Surface of the Water, as at k N° IV : when 
after being expofed to the Air for a little 
while, their fine green Colour became chang¬ 
ed into a moil beautiful Sky-blue. 
This fine dark green Matter or Congeries 
of Animalcules, is fo nearly equal to the 
fpecific Gravity of Water, that at firft put¬ 
ting in, it either floats at Top, or continues 
at the Bottom, or in the Middle of the Jar, 
juft as Accident has difpofed it. But if Part 
of thofe that, are fwimming at the Top of 
the Water have an Inclination to go down¬ 
wards, they form themfelves into a Sort of 
Line or Rope, which defcends extremely 
flow, till they arrive as low as they intend : 
And they are able to fufpend themfelves in 
the Water where they pleafe, and as long as 
they have a Mind. Their Method of doing 
this is fhewn N° V. c c c. Thofe however 
wdio happen to be near the Side of the Jar 
move themfelves down thereon, and that 
commonly in a winding fcrew-like Manner,, 
as n n N° V, is intended to reprefent.—Their 
Motion 
