112 
Htemafiatics. 
to fettle in the Stomach than in the Guts ; 
becaufe in the former they have as much 
greater a length of capillary Veflels to retard 
the Motion of the Blood, as half the Circum- 
ference of the Stomach is greater than that of 
the Guts ; for the Arteries of the Stomach do 
not enter its Coats on one fide only, as thofe 
of the Guts do, but it is fupplied with Blood 
by Arteries which enter, fome on the upper 
and fome on its lower fide ; their converging 
Branches inofculating about the middle of the 
Sides : Without this neceffary Precaution, the 
Motion of the Blood muft needs have been 
there greatly retarded, if it had entered its 
Coats only at the top or bottom; becaufe in 
that cafe it mufi: have pafied thro* capillary 
Vefiels of double the Length that they now 
are. 
46. When any grofs Matter from an Ulcer 
returns into the Courfe of Circulation, it 
firfl: caufes a Shivering by its Obftrudiions j 
but when this Matter is impelled by the Force 
of the circulating Blood thro* the fine capil- 
lary Veflels, it then frequently raifes a fever- 
ifli Heat by its greater Friftion in thofe Vef- 
fels. 
47. In 
