H^emaJlaticL 1 8 3 
Blood to the Stomach, on its PafTage being 
retarded in the Pleura. 
^ • 5?. I found the Gullet very dilatable with 
a fmall Force of Water or Wind, and hence 
it is that when flatulent Wind is afeending 
thro’ it from the Stomach, the Gullet being 
thereby dilated, comprefles the defeending 
Aorta^ where the Gullet is confined in its 
PafTage between that and the Heart ; and 
thereby for that inftant the Blood is driven 
more forcibly up into the Head, which often 
caufes a (hort Swimming or Vertigo ; an Incon- 
j venience which the Flatulent are too frequeni4 
I ly fenfible of. 
Experiment XXIV. 
I. T T Aving as foon as a Dog was dead cut 
X X afunder the Duodenum Gut juft be- 
low the Pilorus^ I poured warm Water into 
the Duodenum^ thro' a glafs Tube which was 
fixed to it 5 when the Water ftood at two 
Feet perpendicular Height in the Tube, that 
Force impelled Water thro* the whole Length 
of the Guts, fo as to flow out at the Anus : 
the Faces in the ReBum made little Refiftance, 
being fofc and not figurated. 
‘1 N 4 
2. But 
