342 T^he Wisdom of GOD Part 11. 



Tendon, the Corner of the internal Eye-lid, and 

 to extend it over the Cornea ; as to the fecond 

 Mufcle, its Adiion is, by making its Tendon to 

 approach towards its Origin, to hinder the Cord 

 of the firft Mufcle, which it embraces, from 

 hurting the Optick Nerve; but its principal Ufe 

 is to affift the Adion of the firft Mufcle ; and it 

 is herein that the Mechanifm is marvellous in this 

 Strufture, which makes that thefe two Mufclcs 

 join'd together do draw much farther than if it 

 had but one -, for the Infledlion of the Cord of the 

 iirft Mufcle, which caufes it to make an Angle 

 on the Optick Nerve, is made only for this End ; 

 and a fingle Mufcle with a ftrait Tendon had 

 been fufficient, if it had Power to draw far 

 enough ; but the Tradation which muft make 

 the Eye-lid extend over the whole Cornea being 

 neceffarily great, it could not be done but by a 

 veiy long Mufcle, and fuch a Mufcle not being 

 able to be lodg'd in the Eye all its length, there 

 was no better way to fupply the Adlion of a long 

 Mufcle than by that of two indifferent ones, and 

 by bending one of them to give it the greater 

 Length in a little Space. Thus far the Academijis^ 

 who themfelves refleding on the Length and Ob- 

 fcurity of this Defcription, tell us, that the In- 

 fpedlion of the Figure will ferve greatly to the 

 underftanding of it, which the Novelty of the 

 thing renders obfcure in itfelf, and fo I fear it 

 will be to moft Readers ; howbeit,in fuch a Work 

 as this I ought not by any means, as I faid before, 

 to leave out fuch a notable Liftance, wherein 



Contrivance 



