Of the Wheel Animah 
Sometimes, when in the Maggot Form, it 
rolls its Head and Tail together, without 
drawing them into its Body; in the Man« 
ner of fig, 14. 
All my Endeavours have been hitherto 
unable to difcover how thefe Creatures pro¬ 
pagate, though for three Years pad I have 
never been without them, and am continu¬ 
ally fenlible of their Increafe, by obferving 
Numbers of extremely fmall ones appearing 
from Time to Time : which undoubtedly are 
young Fry. There’s however good Reafon 
to believe they proceed from Eggs : for I 
have often feen, in the Water y along with 
them. Parcels of Ova, gelatinous like the 
Spawn of Frogs, and of a Size proportion- 
able to the Wheel Animah —Bat after what¬ 
ever Manner they are propagated, ’tis pretty 
certain, from the exceeding Minutenefs of 
fome in Comparifon of others, that they 
come out at ttrft in their perfect Shape, and 
are not the Nymphee of any other Infect, as 
many Creatures found in the Waters are. 
Mine have conftantly been kept in the 
fame Glafs Vettel, fometimes with and fome- 
times without Water: for as the Sides of the 
Glafs were often left dry, I have fuffered 
thofe that had fattened themfelves there to 
remain fome Months in that Condition: 
neverthelefs, I always found them to become 
as lively as ever on giving them frefh Water. 
Mr. Leeuwenhoek kept fome Dirt, taken out 
of a Leaden Gutter, and dried as hard as 
Vol.IL U Clay, 
