Phyfitian, Dri timothy Clerks, hath made k part of his bufi* 
nefs, to purfue thofc Experioietits with much induftry, great 
accuratcnefst and confiderable obfcrvatiossthereonswhich 
above two years fince , were by bim produced and read be- 
fore the R^y^l Society who thereupon dcfired him^ as one of 
their Members^ to compleat, what he had propofed to him-r 
felf upon that fobjeS: , and then to publifli the fame; the 
Effed whereof 'tis hoped , will now ftiorily appear , and 
not prove unwelcome to the Curious. 
Some whereofjthough they may conceive^tbat liquors thus 
injefted into Veines without preparation and digeftion, will 
makeodde^ commotions in the Bloodj difturb Nature^ and 
caufe ftrangc Symptoms in the Body ^ yet they have other 
thoughts of Liquors , that are prepared of fuch things , as 
have paffed the Digeftion of the Stomach 5 forcxampk, of 
Spirit of Urine ^ of Harts- home , of Blood 8cc. And they 
hope likewife , that befides the Medical Ufes 5 that may be 
made of this Invention^ it may aJfo ferve for Anatomical 
purpofesj by filling ^ after this way^ the veffels of an Ani- 
mal as fuUa as they can hold , and by exceedingly diftending 
them 5 difcover ^ew Veffels , 8cc : But not now to enlarge 
upon the Ufes J the Reader may fecurely take this Narrativej 
as the naked real Matter of Faftj whereby 'tis asclear, as 
Noon day ( both from the Time^and irrefragable Teftinao- 
oy of very many confiderable Perfoas in that Univcrfityswho 
can jointly atteft it 5 as well as from that particular unque- 
ftionableoncotlvlr. B^^y/e and his worthy Company , who 
were the firft Eye- witneffes of the TryaU madcj 'that to Ojc- 
ford^ and in it^ to Dr. Chrifiopher Wref^^thh Invention 5s due5 
and confequently^ that all others ^ whodifcourfeor writ.? of 
it 5 doe either derive it from Him ^ or are fallen upon the 
famcDcvifefeveral years after Him; 
Publijhed with htcenfir 
Oxford^ Printed by A: & LcLichfeld^ 
tovRic: Da'vis. 166'^. 
