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Ëgyf>tian Bat is taillefs, and much reièmbles 

 that of Madagafcar^ but much lefs. As a duck 

 is a v/eb-footed bird, a Bat is juft in the fame 

 fenfe a web^footed bead or quadrupède, though 

 they differ in many refpedts : a duck, or other 

 water-fowl, hath the toes webbed together with 

 a ftrong, tough, though pliable web, of a fmall 

 dimenfion, yet large enough to work in fo denfc 

 a medium as water : the Bat hath the legs for- 

 wards webbed principally, though thefe webs are 

 always joined to the hinder legs j the webs are 

 exceeding thin, foft and pliable, and vaftly ex- 

 tended in breadth, if compared with the webs 

 on the feet of fowls -, the reafori of which is ma- 

 nifeft ; far the air being a medium vaftly more 

 rare than that of water, it requires a membrane 

 broader, thinner, and riiore light and delicate 

 to work and fupport itfelf therein. It is conve- 

 nient for water-birds to have their oars in the 

 hinder-parts of their bodies, becaufe the water 

 is under them, and they row themfelves forwards 

 on its furface ; but it is different in Bats ; for 

 they have their webs principally on their for- 

 \vard limbs, in order to row themfelves forwards 

 \n the air. A gentleman, an eye-witnefs, has 

 t O told 



