276 neWisDouof GOD PartlL 



I find in the Philofopbical T^ranfaBlom^ N<5 280. 

 fome notable Obiervations of the famous Anato- 

 mift ^x, William Cowper^ concerning the Artifice 

 of Nature in regulating the Motion of the Blood 

 in the Veins and Arteries, to aflTift and promote 

 it in the one, and moderate it in the other, which 

 I fhall give you in his own \Yords. 



" As the Arteries (faith he) are known to ex- 

 port the Blood, fo the Veim to carry it back 

 again to the Heart ; but having already defcri- 

 bed their Extremities, we come now to the 

 large Trunks of the Veins-, and here, as in the 

 Arteries^ we find the common Pradlice of Na- 

 ture, in difpofing the Branches of Veins to dif- 

 charge the refluent Blood into the next adjacent 

 Trunk, and fo on to the Heart. As the Arte- 

 ries afford abundance of Inftances of Checks 

 given to the Velocity of the Current of Blood 

 thro* feveral Parts, fo the Veins fupply us with 

 as many Artifices to afljft its regular Return to 

 the Hearty as well as favour thofe Contrivan- 

 ces in the Arteries, 



" The carotid, vertebral, and fplenick Arteries, 

 are not only varioufly contorted, but alfo here 

 and there dilated, to moderate the Motion of 

 the Blood; fo the Veins that correfpond to 

 thofe Arteries are alfo varioufly dilated. The 

 Beginnings of the internal Jugular shawQ a bul- 

 bous Cavity, which are diverticula to the re- 

 fluent Blood in the Si?2us's of the Dura Mater, 

 I . " left 



