Cfss) 
the contrary their application to Chymiftry, Mecha- 
nicks, Generation of Animals, to find out the feats of 
Difeafes , with their Gaufes, &Ci which the Author of 
the Epiftle could not be ignorant of,wh€nce he concludes, 
it was defignedly levelled at himfelr and his Studies, 
which were chiefly of thofe three SubjedJs, Then he 
(hews, that the Ancient as well as Modern Phydcians 
applied thenifelves diligently to Anatomy, and Ga/en 
himfelf to that of Plants, as like wife CefaJpinas and 
M'tzaldm, and hints at the ufe and neceflity of Micro- 
fcopes, to difcover the Minute Operations of Nature,* 
The whole Atifwer to this Epiftle being pretty large, 
and this Extract of the Work already extended too far, 
I' ftiall only touch upon feme few of the principal 
Heads, and Conclude. Firft heilievi^, that but few in 
refpedt of the great Number of Praftitioners apply 
themfelves to thofe three Anatomies and they that 
have fb done, have not fo wholly Studied that, as to 
negle(9: other parts of Medicinal Xearning, and tho' 
it fcouldbe granted, thefe three things did conduce but 
little to the more folid Medicine, yet ftill they render 
the Phyfician more Compleat* And here, by the 
way, he determines what may be a Solidior Medicina 
Trakica, which he will not allow to be only Empirical, 
as the Author of the Epiftle contends but a truly Ra- 
.tional Method, which he ftiews wa^ the more Ancient, 
and the Empirick but an Herefie from it j this is foun- 
ded upon a true Anatomical Knowledge of the fe ve- 
ra! parts of t be Body, by the means of Philofophy and 
Mechanicks ; whence we proceed, a priori to Phyfiolo- 
gy, Pathology, and laftly, the Art of Medicine, Here 
he gives fome Inftances of the ufe of Mechanical Ex- 
periments, to Explicate Vifion, Pulfation of the Arte- 
ries, Refpiration, Godion or Digeftion, and tho' 
.we cannot know the way that the Soul aduates the 
N n n n z Body, 
