(«7V 
texture of its fibres , whofe Pnfmaticalco\xi im% are not fe- 
parated from the membranes and tendinous fibres , neither 
is their difpofition direU zwAparallel , but i^urve and fpird 5 
and that too in a way far ditferent from Vef alius his wick- 
er basl^ Its. 
And atiaft concludes that the moving facultie of the 
Heart doth exceed the refiftance of the whole bloud in the 
Arteries, and of the ligaments that hinder their dilatation, 
V hich is greater than the force of a weight of i §0000, 
He afcribes Refpiration wholly to the mufcles that en. 
large the TAor^:^, [vi^^ The Jntercojlalls 2Ltid the Dmphrag-^ / 
me) together with the weight and elafticity of the Air, The 
nianner^ by drawing up the circumference of the R.ibs to* 
wards the Throats by directions that make accntc Angles 
with the Planes of the Ribs. 
Remarkable is the ftruflure of the T horax in the lorteis^ 
which hath no divided ribs , but one continued bony arch, 
2Lnd no Diaphra^me i and inftead of Lungs^ two long blad^ 
ders containing alfo the bloud veffels. Thefe baggs are 
not alternately filled and emptied, but conftantly remain 
full of Air 5 which is not renewed in them but partially 5 
by the external mufcles that ftick to the Skin which when 
unadive make an hollow Sinu^s, but contraiied a Plain^ 
The ufe he alEgns to refpiration , b^fides thediflbl- 
ving of the grumous concretions of the bloud by dividing 
it into minute Particles , is the mixing the Air with the 
bloud, which neither increafes the fluidity of it, nor 
caufes any efFervefcence in the Heart by its Ela/imty of 
Nitrous nature^ but fuppofing the particles of the Air to be 
fpiral flexible machines » they muft be comprefled by the 
weight of the Ambient vifcera znd veffels. But the fluid 
and falid parts of Animalsbeing moved a Thoufand diflfc- 
rent wayes , thefe fprings conceive a motion like that of a 
Pendulum^ which gives a tremulous motion to the bloud, 
and continues it till the death of the animal, that being 
its Motion. » 
The Nutrition of Plants he explains by imagining 
an 
