( 7^9 ) 
modern, which are many, proceed from wane of a due confider^tfo!^ 
bothof the true entire fabrick of the parts, and alfo of their confent 
with one another, cither by their connexion, or contents ^ many of 
tbern, from a light obfervation of a few circuinftanccs,runQing pre« 
fently to analogies. 
To which purpofehc inftances, firfl; in the known diftinftion be* 
tween principal and fubfervient parts thettjin themiftakcn notiosi, 
as he fuppofes,aboutmureulou5 flefli-, he allowing nothingto be cal- 
led fle(h,but what is fibrous, foft,and contradik : And to other fofp^ 
but not fibrous, fubftances, which lie. about the veffela of the vifcera^ 
&c« he leaves the ufuai name of a farenchymas and afferting, with his 
hmOM%T\xlOT Steno^ that all the folid parts of our bodies,€Scepc the 
farenchymatay^xQ nothing elfe but a texture of the fame kind of fibres 
varioufly diverfified i affirming, particularly, of bones (after Stens,) 
That they were firft fluid, then tendinous, afterward cartilagineous, 
and laftly came by degrees to have their hardnefs and folidity. From 
hence he infers, that there are no firailar parts but fibres, and the 
fubftance afFufed about them jfinceall parts>accordingto him, are rc« 
folubic into them : Which he endeavours to make out from the con- 
fideration of fome of the more obfervable conftituent pares and inte- 
guments of the body- laying down all as preliminary to demonilrace, 
that not only the Diaphragm, but all partfoFthe body, both ioMA and 
fluid,are moved by Motive fibres Here he gives the definition of a: 
Motive fibre , delivered by Steno, and pofitively affirms, that that mo- 
tion belongs only to carneous fibres (whatfoever colour they are en- 
dued with, for he thinks rednefs is not effential to a carneous fiber* 
as fuch) and takes both tendons, and bones, to owe their motion to 
tbofe fibres i but believes both membranes and glandules infufficient 
for motion,which he alfo denies to the fubflance of the Brain. 
From hence he defcends to confider the ftrufture of the DiAfhragm\ 
where firft he taxes former Anatoraifts , both for aflSrming it to be 
one fingle raufde, and alfo for teaching, ihttih^OefofhagHs ^iRt% 
through the membranous parts of if, whereas he affirms, it paffes 
through the carneous declaring it to confift of two mufdes i where« 
of the upper, at one of its extremities, adheres circularly to the ribs, 
at the other, paffesinto an aponenrofis^ which makes the nervous center 
ffo called J of the Diaphragm: The lower, ^^//ij/, arifes from the 
vertehrd Qi the loyns,and ends in the fame aponeHrofis^ntixh^t proceed- 
ing from^,nor having commerce with, the other,but by that afdnenrefis * 
afferting withal,that the two appendices of it are made up of feveral 
tendons, terminated in the feveral f^rf^^r^^ that each of thefe mufcles 
has peculiar veffels j and that the fibres of the upper pare of the lower 
mufcle are foraewhat circular, both to make way for the cefophagf^,znd 
to conftringe it i defcribing withal the fite of the fibres,and Ihewing 
the difference between the fabrick of this part in men, and fome 
brutes> obferving alfo, thatthere is, on both fides,a continuation be- 
5 H 2 tweeci 
