C 1728 ) 
And here again the unconceivable Order and the Wif- 
dom of the Great Creator of all things is very obvious 3 
for what Man is there in the World that could u^ind a- 
boLit a Globe or Ball with a fingle Thread of equal fize 
throughout, and not crofs it felf in any point 5 and yet 
llich is the Contexture of the Filaments or Fibrous mat- 
ter, of which the Scales of the Criftaline Humour of a 
Whale are compos*d. 
When I talkt with the late Heer Chrijlian Huygens of 
Zuhkhem^ about the Criftaline Humours in the Eyes of 
Filhes, to wh, about the Spherical Figure thereof, his 
anfwer was^ What fliall we fay? the Eyes of the Filhes 
are of a wonderful form. 
Since which^ having carefully obferv'd the Eyes of feve- 
ral f iihes^and particularly the TurjicaCormathtxQof^ I found 
that the faid7WV,or rather the Pupil or Apple of the Eye, 
was very fiat, like thofe in Human Creatures and other 
Aninialy^ from whence I concludedjthat tho theCriftaline 
Humour in Fifhes was Spherical, yet the fame was made 
good by the Flatnefs of the Apple of the Eye in the fame 
Filhes ^ from whefice one might probably conclude, that 
the Eyes of Fifhes are of the fame contexture with other 
Land- creatures, and consequently the effefts in both are 
the fame. For if you obferve the Sphericalnefs of the Ap- 
ple of the Eye in- Men, it will be found to be a large Eye, 
where the TnnkaCormiim2i\it^ a Circle, whofe Axis is an 
inch long. 
When I had taken the Eye out of the Head of a living 
Cod-fifh, and put the Tukica, Cornea, in feveral Copper 
Globes, or Internal Circles, it appeared to me that the 
protuberant roundnefs of the faid Tunic was equal to the 
Segment of a Circle^ whofe Diameter w^asof two Inches. 
The faid Eye was a little prominent out ''of the Head, 
like thofe of other Creatures, and tho the Tunics or Ap- 
ples make a larger Circle, yet are they not, bigger, and the 
Axis of the Criftaline Humour was a little longer than 
half an Inch. Now 
