Cm) 
I have, to give the more Satisfadion, laid feme Nerves? 
of the Eyes, which I had taken out of the beforemen- 
tionedFiy, uponGlafs, MYear, and fixed it before the 
Magnifying Glafs, to have it delineated, as well as the 
Defigner could follow it. 
Fig, 2. GH, are Two Optick Nerves, H being pla- 
ced very near, or quite in the Hollownefs of the Sight, 
and G was placed inwards, toward the Head of the 
Fly. 
Fig, 3 . I K L, are Seven Optick Nerves, the thickeft 
End whereof was alfo placed towards the Cornea. 
Fig, 4. M N O P Q^, fliewed a great Number of the 
Optick Nerves, that Jye one upon the other, whereof 
the upermoft Ends, as N O P, were alfo placed to the 
Contea ; and becaufe there lie Co many one upon another, 
one cannot difcern the true Length of them, and where 
they lay fomewhat thick, the Light can conveniently be 
difcerned, for they are fomewhat tranfparent, asis Ihcw^ 
ed in the lad named Figure. 
I have formerly fliewed, how every thin part of Fleffi, 
or Fifli, when it doth lie in Reft, is full of Wrinkles, or 
elfe full of Rings like Joints, but when they are brought 
out of Reft, and are employed, the Wrinkles and Rings 
are gone, and the Parts grow longer. 
Theft Ring-like Wrinkles I have alfo obferved or dit 
covered in the Optick Nerves of the faid Fly, from 
whence we may well conclude, that each of thefe fmall 
Optick Nerves, are as well provided with Extenfion, as 
the Nerves of our Eyes ; for we cannot move our Eyes 
fron| one fide to the other, but the Nerves of our Eyes 
muft be more extended than if we fee out Straight.- 
When^ 
