286 Of the Wheel Animal . 
Wheels or Funnels are enabled to turn 
themfelves quite round * ? 
Having defcribed the mod: remarkable 
Parts of this Infed, I lhall, by the four fol¬ 
lowing Figures, endeavour to reprefent fome 
other of the mod ufual Forms it adumes, 
both when its Wheels are fully protruded, 
and when the Edges only of them are diewn 
with their little vibrating Fibrillce. 
Fig. 6. is the Wheel Infeffi railing itfelf 
on the Tail, dooping the Head down¬ 
wards, and working its Wheels about. 
This is a common Podure, in which 
the Back is bowed, and the Belly ap¬ 
pears diortened and didended, great 
Part of the Thorax being taken into it. 
The Wheels in this Polition feem to 
turn horizontally, with their Backs up¬ 
wards and towards the Eye, in which 
Manner they appear very didind and 
large, with their Teeth bending all the 
* ' 
m It is certain all Appearances are fo much 6n this Side the 
Queftion, that I never met with any who did not on feeing it 
call it a Rotation ; though from a Difficulty concerning how it 
can be effefted, fome have imagined they might be deceived : 
Mr. Leeuwenhoek alfo declared them to be Wheels that turn 
round; vid. Phil. Tranf. N° 295. But I lhall contend with 
nobody about this Matter : it is very eafy for me I know to 
be miftaken,, and fo far poffible for others to be fo too, that 
I am perfuaded fome have miftaken the Animal itfelf.\ which 
perhaps they never faw, whilft inftead thereof they have been 
examining one or other of the feveral Water-Animalcules that 
are furniffied with an Apparatus commonly called Wheels , 
though they turn not round, but excite a Current by the 
mere Vibration of Fikrilla about their Edges. 
fame 
