Iv. “AND REVIVED. 159 
which produced another wheel animal. Thus I 
know, from the time of exclufion until maturity, 
they undergo no change. We cannot call it a 
metamorphofis when they are produced, for then 
they have attained their greateft perfection. The 
-infe€ts that metamorphofe never propagate their 
fpecies until they become winged animals, that 
is, until they have acquired the laft degree of per- 
fection to which metamorphofis will bring them. 
Finally, my obfervations have fhown me, that 
wheel animals are hermaphrodites in the moft ri- 
~-gorous fenfe. I have obtained the fifth genera- 
tion from many eggs which were ifolated in 
watch-glafles to remove all fufpicion of copula. 
{i0n, 
SECTION II, 
- THE SLOTH, ANGUILLA OF TILES, AND THOSE OF 
BLIGHTED CORN. 
oe fand of tiles, the mud of ditches and marfhes; 
which pafs in the vulgar eye for the vileft of mat. 
‘ter, are fources of wonder to the philofophic ob- 
ferver, 
