[Sio 1 
ditclies and moats where the water was low, which I 
did examine and look upon with a more than ordinary 
Magnifying. Glafs, and did obferve that feveral forts 
of animals did fwim in the water. The water which I 
did not like I did fling away, and that which pleafed 
me I did powr into a Glafs Bottle. 
~ The greateft fort of animals were thefe that produce 
Gnats, which carry their ftings, wherewith they an- 
noy both Men and Beafts. 
One fort of th@fe animals did generally fink to the 
bottom as foon as they ceafed to move their bodies 5 
and when by moving of their body they came to touch 
the fur face of the water with any part that ftuck out, 
then their head did hang down, and they did remain 
hanging on the furface of the water. 
The fecond fort of thefe animals could not remain 
at the bottom, but generally were carried towards the 
furface of the water, and there they remained hang- 
ing, by two horns that came out of the upper body, 
on the furface of the water 5 and when they would 
go to the ground, they did make with their body a 
ftrong and vehement motion, whereto they made ufe 
of an inftrument that was tranfparent, and was fixed 
on the end of the tail. 
When I faw thefe differences in the faid animals, I 
did confider, that, as there is feveral forts of Gnats, 
that two forts of Gnats did proceed out of thefe ani- 
mals, mz. Gnats that have ftings, and Gnats that 
have none ^ yet I found my felf miftaken in my opi- 
nion, for I found that although there was two forts of 
Gnats, yet they both had ftings. 
Out of thefe faid Worms came Gnats from time to 
time, which did place themfelves on the glafs, and fat 
alfo down fometimes upon the water ^ and when they 
did fo, they fpread out their long legs on the water. 
This 
