( X30 • 
The Analogous white appearance of the ChyJc, 
whether in the Stomach, or Inteflines, and always in the 
Ven{B la^ee and Thoracick Dud, may be feen in the 
Commixtures of divers Liquids, which feparated ex- 
hibit no fuch appearance : Nor is this Thanomenon any 
otherwife then a Tranfpofition of Particles, whether by 
a MenftruuYii^ infmuating into them, dividing them into 
grofi Globules, as an Acid into a Sulphur, as Vmcgar 
with Oyl ^c, or elfe by Precipitation, as when a Gum- 
mous or Reflnous Body is diflblved in a Spirituous Men- 
ftruum, and mixt with aFlegm; (b Tinflure of Myrrh 
and Benjamin, &c. make a Milky Appearance in com- 
mon Water. 
The Longitudinal and Tranfverfe Orders of Fibers 
of the Guts, are the Inftruments by which the Periftal* 
tick Motion of them is perform'd, which Motion is 
not only neceflary for pufhing their Contents forwards, 
but by the reciprocal Contraflion of thofe Mufcular 
Fibres of the Guts , and appofition of their Connivent 
Valves , the Mouths of the Lafteals are difpofed to re- 
ceive what's fitted for them ; hence it is we can by no 
means make any Fluid, whatever paft from the Cavity 
of the Guts, into thole Lafteal Veflfels, in a Dead Ani- 
mal. A farther ufe of this Contraftion of the Mufcu- 
cular Fibres of the Inteflines, is to Accelerate the Chyle , 
in its progrefs in the LacSeals, till the Lympha deriv'd | 
from the Extremities of the Arteries of the Guts joins i 
with it ; which Conjundlion is made in the LaSieaU, be- 
fore they leave the External Surface of the Inteflines : ; 
By this means the Progreflion of the Chyle is made to- 
wards the Mefenterick Glands , into whofe Cells it's re- ; 
ceived, where it again mixes with a Juice brought in by i 
the Arteries of each Gland; which Juice or Lymphaticfc } 
Liquor, not only farther Dilutes the Ghylc, like that ' 
from the Arteries of the Inteflines, but addsafrefli Im- 
pitus 
