thtmgh the Movnf filvo lye like a Wtry damp on 
SiGla/s; and when I continnued this prefling for fome 
timCythis m^try^amp encYe^fed Drops , and at 
length run like water in aftream. This ought not to 
feem ftr^Qge^ cjonfideriag the parts of the Horny Coat 
tp m^de ot hollow Feflels, like ^eins j very thin, and 
fpread abpHtin jBr^w^/^^/. • 
I have lately taken the Horny coat of an Oxss £y^,and 
have feparated from it, feven films, extremely thin, in 
each of which, were a number of interwoven, very clear, 
and tranfparent /ri^^/^fj- ; which Ljudge to be, many of 
th^m^ blood J/'eJfels but fofmall, that they contain none 
of the Globules , which caufe the rednefs in the blood. By 
the rubbing of our Eyes, with our hand, we may (o pre(s 
thefe blood veffels, until they become fo ftretched out, 
thatfpmeof thefe bloody Globules, miy get in. and re- 
main there, for fome time, which may caule that rednefs 
in our Eyes j which comes by our rubbing of them. 
But to return again, to the Eye lids. As out Mufcles 
and other parts of our bodies reft not, unlefs pofited as 
they lay, when we were yet in the Womb; (as I formerly 
faid) ia like manner, the /^^j-, are not at reft, till the 
£y^j-areclofed, and therefore we cannot long continue 
the Eye lids open, but with forces and, that the fame 
might not be wearied, we often clofe them, although 
wemmd it not. I have feen People, that liftningwith 
attention, to a Difcourfe, have clofed their Eye Itks ac- 
cording to my Calculation dooo. times in an hour where- 
as otherSg ftanding by them, clofed them not, above 2000. 
tiipes in the fame time. 
Since I wrote unto Mr. Oldenburg, in the year 167 v 
that the matter, caufing the rednefs of owt Blood, was 
leonftituted of G/(?^2//^j' ; I examined the blood of Oxen, 
Sheep, and ^abbets ; and obferved no difference in mag- 
nituck, between the Globules olthofh u4nimals, and thofe 
joiMen: fo that I conceived, that that matter which in 
general 
