184 Hce^najlatku 
' 2. But when in another Dog a Tube was 
fixed to the Gullet, and Water was poured in 
fo as to bLirft the Stomach and one of the 
Guts, yet there being hard Faces in the 
Re 5 iumy no Water pafled thro’ it. 
3. From this Experiment we fee how re^ 
quifite it is, in fome colicky Obftriidions of 
the Bowels, to promote the Operation of Pur- 
gatives with Clyfters,* without which. Pur- 
gatives may in fome Cafes do more harm 
than good, while they increafe the painful 
Diftention of the Bowels, without being able 
to pafs and carry off the noxious Mafs. 
4* I am very fenfible that there was wanting 
in this Experiment, the periftaltic Motion of 
the Guts, which in a live Animal promotes 
the Defcent of their Contents. But 'cis to 
be feared that when in the Iliack Pajjloriy 
there is a Stoppage in any part of the Guts, 
either by Faces or diftending Wind, if that 
Diftention be fuperior to the Force of the ar- 
terial Blood, it muft neceffarily ftop the Courfc 
of the Blood in that part; w^hich muft con- 
fcquently both retard the periftaltic Motion, 
and alfo caufe an Inflammation ; which if nor 
foon prevented too often ends in a Mortifica- 
tion. 
Experi- 
