i 
Animacules In Waters . g1 
of thefe was ttiaped like Bells, with long 
Tails, whereby they fattened themfelves to 
the Root of thefe Weeds; and fometimes 
twenty of thefe were feen together, gently 
extending their long Tails and Bodies, and 
then, in an Inttant, contracting them again. 
See the Draught, Plate VIII. Fig. I. 
A, reprefents a Root o£ Duck-Weed, with 
the Tails of many Animalcules adhering to it. 
b b b b, &c» ttiew their Bell-like Bodies. 
c c c c, their long Tails. 
Another extraordinary Kind of Animacule 
(which fee Fig. II.) appears in a Sheath or 
Cafe, a , b, c, the End whereof it fattens to 
the Duck-Weed Roots. This little Creature 
has two feeming Wheels with a great many 
Teeth or Notches coming from its Head, 
and turning round as it were upon an Axis, 
d, e. At the leatt Touch it draws the Wheel- 
work into its Body, and its Body into the 
Sheath, after which it appears as Fig. Ill, 
But when all is epiiet, it thrutts itfelf out 
again, and the Rotation of the Wheel-work 
is renewed. Mr. Leeuwenhoek took No¬ 
tice of one of thefe, whofe Cafe feemed com- 
pofed of minute Globules (Fig. IV. a , b.) 
and in this he difcovered the Wheel-work to 
confift of four roundifh Parts, with little Di- 
vifions between each, though only three of 
thofe roundifh Parts could be feen, the fourth 
lying behind, as reprefented Fig. V. This 
convinced him how much he had been mif- 
taken. 
