262 ne Wisi>ou of GOD Part IL 



with fuch a Membrane. Frogs, becaufe being 

 amphibious Animals, defign'd to pafs their Lives 

 in watery Places, which for the moft part abound 

 with Sedges, and other Plants endow'd with 

 fharp Edges or Points 5 and the progreffive Mo- 

 tion of this Animal being to be made not by 

 walking, but by leaping, if his Eyes were not 

 provided of fuch a Sheath, he muft either (hut 

 them, and fo leap blindly, and by confequence 

 dangeroufly, or by leaving them open run a ven- 

 ture to have the Cornea cut, prick'd, or other- 

 wife offended by the Edges or Points of the 

 Plants, or what may fall from them upon the 

 Animal's Eye; whereas this Membrane (being 

 fomething tranfparent as well as ftrong) is like a 

 kind of Speftacle, that covers the Eye without 

 taking away the Sight. Birds are likewife fur- 

 nifh'd with it, becaufe being deftinated to fly 

 among the Branches of Trees and Bu(hes, their 

 Prickles, Twigs, Leaves, or other Parts, would 

 be apt otherwife to wound or offend their Eyes. 

 But yet flill v\^e are to feek why it is given to 

 other Quadrupeds, whofe Eyes are in no fuch 

 danger. 



thirdly, The Ear, another Organ of Senfe, 

 Jiow admirable it is contrived for the receiving 

 and conveying of Sounds. Firjiy There is the 

 outward Ear, or Auricula^ made hollow, and 

 contracted by degrees, to draw the Sound inward, 

 to take in as much as may be of it, as we ufe a 

 fuDBcl to pour Liquor into any VefTely and 



therefore 



