IMPROVED. <5i 



Knowledge, in their Pradice. The Ancients were 

 not acquainted with the Circulation of the Blood, 

 neither the Moderns, till that glorious Luminary of 

 our Ifle firft paved the Way to it, I mean the re- 

 nowned William Harvey, born at Folkjion in 

 Kenty and bred in Caius Colledge Cambridge, where 

 he commenced Do<^or in Phyfick ; he ftudied five 

 Years at Padua in Italy j and when he returned, was 

 made Phyfician to King Charles the Firft. I 

 fay, this great Man, to whom we are fo much in- 

 debted for a Difcovery fo efTentially neceflary for 

 us to- underftand in curing Difeafes, was a great 

 Benefaftor to the College of Phylicians in London, 

 and died in the Year 1657, aged 80 Years. He 

 was never married, but rather immortalized his 

 Name by his Books de Circulatione Sanguinis, de 

 Generatione, ^ de On/o, Sec. 



The Word Artery, as fome imagine, is derived 

 from ct»f, Jir, and t^ico, fern)o, to keep; for 

 the Ancients had a Notion of their inclofing a great 

 deal of Air : But others, who underftand their Ufa 

 be**er, derive it dTro ra &t^^v ; becaufe it continu- 

 iMy rifes up with a Pulfe-like-Motion; There are 

 indeed three Duds or Pipes in the Body, to which 

 the Name is afcribed and applied, in which the 

 Arterial Blood does not flow as in the Reft of the 

 Arteries. And I muft fo far acknowledge my Ig- 

 norance in this Matter, that I do not really under- 

 ftand why thefe three Dufls ihould be called Arte- 

 ries; efpecially two of them ; they are the Afpera 

 Arteria or Wind -Pipe, the Arteria Puhnonalis, and 

 Vena Arteriofa, which laft is a plain Contradi6lion, 

 But indeed, all the Veflels which convey Blood 

 from the Heart, more properly are hereby included ; 

 and which is of that Confequence to be well ac- 

 quainted with, as deferves a particular Defcription ; 

 For really, moft Farriers call all the Veftels in the 

 Body, without Diftindlion, Veins, and have no 

 Notion of what is meant by an Artery. Firft 

 then I fay j 



An 



