I ml 
I therefore firft examined the Film or Membram 
which enclofes it, and feparates it, from the other /6^^- 
mors of t\iQ Eye and conceived that it was conftituted 
ot'Threds ; but at another time, tho there were great di- 
ligence ufcd, I could oblerve none at ali. 
In thefe Inquiries^ I have feen (tbongh leldom) the 
imprejSionsotthe thred-iil eiubftancc, oi theoutermoft 
fcales, of the Crifiallin humor, in the forementioned 
Membranes whence I concluded, that one ufe thereof 
might be, to fill up all the unevennefles caufed by the 
threds iii ih^ fuperficies of the Crijial, and fo to conftitute 
Another ufe of it, may be, by cpmpreffing the ^r/- 
flallin humor to alter its figure, and make it part of a 
greaterorlefler CfVr/^ ; and this being io, it may not im- 
properly be called a Mw/r/^. 
i^lthough ( as before is fa id j it did not plainly ap^pear^ . 
that the i77/?2 is conftituted of threds woven together ^ 
I notwithftanding, make but little doubt thereof,- be- 
caufe formerly, in the thinneft Membranes I have feen 
thefe thred-like appearances, and alfo for that I examin- 
ed the parts thereabout and found a great many Itreakes 
or Liiies, feeming to he l.ymphatic\^VeJ[els, defigned for 
the noonfhment-oi: the humours oithQ Eye ; thele I traced 
till they entred into the coat of the Cri'/Z^^i/m humour, and 
theathey grew fofmall that I loft, the fight of them. 
I further obierved, that the aforefaid Crifiallin body^ 
was compounded of thin placed upon one ano- 
ther : Thefe feem'd about 200a thick, for the Axis, where 
4t was longeft, was |of an Inch, (o that the diftancefrom 
th.e Center to the Cireiimfereoce is as | of an Inch: now 
theteiigth of an Inch being fix hundred hairs bredth, ■ (as ■ 
Jh^ve oftenfaid^ Imuft beioo hairs bredth, which be- 
ing niultiplyed by 10. (the nu inber of Scales equal to the 
bredth of a hair) make 2000. Scales', tl e tliicknefs of this 
Crifiallin body. I have further obferyed^ that each of . 
:v thefs-.. 
