152 Tie Wisdom of GOD Partit 



muft perform that as Birds do, by the Motion of 

 one of their Fins, while the other is quiefcent. 

 It is no lefs remarkable in them, that their whole 

 Body is incompafied round with a copious Fat, 

 which our Fifhermen call the Bhibber, of a great 

 Thicknefs ; which ferves partly to poife their 

 Bodies, and render them equiponderant to the 

 Water y partly to keep off the Water at fome 

 Diftance from the Blood, the immediate Con- 

 tadt whereof would be apt to chill it ; and part- 

 ly alfo for the fame Ufe that Clothes ferve us, 

 to keep the Fi(h warm, by refleding the hot 

 Steams of the Body, and fo redoubling the Heat, 

 as we have before-noted. For we fee, by Ex- 

 perience, that fat Bodies are nothing near fo 

 fenfible of the Impreffions of Cold as lean. And 

 I have obferved fat Hogs to have lain abroad in 

 the open Air, upon the cold Ground, in Winter 

 Nights ; whereas the lean Ones have been glad 

 to creep into their Cotes, and lie upon Heaps to 

 keep themfelves warm. 



I might here take Notice of thofe Amphibious 

 Creatures, which w^e may call Aquatic Quadru- 

 peds (though one of them there is that hath but 

 two Feet, viz. the Maimti, or Sea-Cow) the 

 Beaver^ the Otter ^ the Phoca^ or Sea-Calf, the 

 Water-Rat^ and the F;7?g*, the Toes of whofe 

 Feet are joined by Membranes, as in Water- 

 Fowls, for fwirnming 5 and who have very fmall 

 Ears, and Ear-holes, as rhe Cetaceous Fifhes 

 have, for hearing in the Water. 



To this Head belongs the adapting of the 



Parts that miniiter to Generation in the Sexes 



2 one 



