[ 11 ] 
but to render them of a fufficient Thicknefs to 
match the Edges of the upper Eye-lids, when they 
pafs over the Eye, and come into ContaCt with them* 
Santorini diftinguifh'd indeed the Fibres upon the 
Lids from the circular Fibres of the Orbicularis ; but 
fays, their Motion or Action is at the fame Inftant : 
Which Miftake we fhall rectify in the following 
Obfervation. He alfo makes the Occipito-frontalis 
run downwards over Part of the Orbicularis , and 
fink into it about the Supercilias blending with each 
other between the inner Canthus and the Nofe. 
XVII. 
The Aperiens Talpebram re£lus arifes narrow from 
the upper Part of the Hole of the fphoenoidal Bone ? thro' 
which the Optic Nerve pafies between the Origina- 
tions of two of the Mufcles of the Eyes, viz. the 
Attollens and the Obliquus major 5 and ends broad 
and tendinous in the Edge of hhe upper Lid, and 
ferves to draw it up ; whereby the Eye is open'd. 
This, with a little Portion, by fome call'd the 
Ciliaris , are hid under the Orbicularis \ and there- 
fore I have reprefented it in this Drawing of a Pre- 
paration, made on purpofe, of ail thefe Mufcles to- 
gether in two different Viev/s, which will give a juft 
Idea of their Stru&ures and Actions. See Tab. I. 
Fig. 2, and 5, 
C i 
xvm. 
