V } 
Tails into the Bodies of thofe Lice, did withal convey 
their Eggs in at the fame time, and thai from thofe 
Eggs young Worms fhouldhave been produced, which 
having received their Nourifhment and Increafe from 
the Bodies of the Lice, ftiould be changed again into a 
Fly, but the Green Lice died, and for the moft part 
dried away. 
Not content with this obfervation, I got together 
again 25 dead Lice, all of which had in their Bellies a 
Worm, orelfe a Fly nev/ly changed, for I faw thro the 
skin of fome of the Lice, living Flies, which Flies I 
took out alive from the bodies of fome of thofe Green 
Lice which I opened on purpofe. 
Having ftiut up tliefe Lice in a clean Glafs Tube, 
and fome days after the File coming out of them, I 
went into the Garden to get four Caterpillars or Riper 
Worms, amongft which there was one that was very 
hairy, and I obferved that when one of the Flies ap- 
proacht this hairy Ripe^ Worm, to thruft his Tail into 
him, as foon as he toucht the Hair he fuddenly drew 
it back again. 
I put alfo into the Glafs Tube, together with the 
Worms or creeping Infefts,three aurelU cafes or Popkens^ 
which had Iain in their Web in fome wither'd Leaves, 
with this Profpeft that the faid Flies (hould infinuate 
their Eggs into the bodies of the Worms, and that fo 
doing, there might proceed from the body of each one 
25 Flies, but they did not fucceed with rue, becaufei 
as I imagined, all the Flies, tho fix or eight of them 
together were running and flying about the Glafs Tube, 
died away v/ithout laying Eggs, which I judged, waSi 
only becaufethey wanted food, for we fee that there 
are fome Flies that lay Eggs without eating, and then 
die, whereas others ftiali Jay no Eggs unlefs they 
car, * 
Fig, 
