( ) 
It has often happen'd that in the burfling of Clafs, cr 
of Sparks flying out of Wood-coaJs (my eye b^ing a little 
too near) fmall particles ot the Glafs or Fire came into 
my Eye, and-caufed it to fmart, upon which i ufed to 
arm my Eyes with Spedacles, againfl: the like Accidents 
for the fuiure. 
Now I obferve when I look thro one of my Glailes by 
Candle light, that near the upper part .of my Eye in the 
Tunica (orned, there appears a fine fmall Flame of a Candle 
inverfoi, no bigger than the common Letters we ufe in 
Writing, and oppcfite to jt appear two round clear lights, 
fo very fmall 'that the Flame of the Candle is not to be 
perceived therein. 
From hence I conclude, that the Tufuca Cornea of the 
Eye, by the wound it received from thofe particles of 
Glafs, has loft fbmtthing of its roundnefs, which cccafi- 
on'd thofe Appearances, and that when the wxundedparc 
flood juft before the fight it obftrufted it, &c. 
I obferved alfo, that in feveral places of the Tunlc<L 
Cornea^ there lay Veins no longer than the Breadth of 2 
or g Hairs put together, wherein I could perceive the 
Globules of Blood very diftindly 5 thefe Veffels w^ere fo 
fmall, that they could contain but one Globule in the 
Diameter of them, and the Blood had no manner of 
Motion. 
The VeflTels feem to me to be broken off from other 
Blood-veffels, and when the Particles of Blood are a little 
crowded together, or when one of thofe longifliVeflels are 
fomew hat bended, it appears tothefight, as if onefaw a 
thick Cloud. 
With this Cloud of fmall particles, the eyes are fur- 
rounded but more one time then another, tor fome are 
difperft, and then others arife in their places^ when we 
view thefe VefTels with their Globules of Blood, thro one 
ofmyGlafFes againft a Candle or other ftrong light, they 
feem 
