1 6 8 Hcemajlatics. 
Thus when there is too plentiful a Difeharge 
into the Cavity of the Guts in a great Diar- 
rhoea, the Perfpiration is then fmall, and there* 
is little Saliva. On the contrary in the Quin- 
2ey the Saliva abounds, becaufe the Courfe of 
the Blood is there obftrudled : As aifo in the 
fmall Pox the Qiianticy of Saliva is large, be- 
caufe the Perfpiration is (looped ; which Stop- 
page of Perfpiration often alfo increafes the 
Qiiantity of the Mucus feparated in the Nofe^ 
And from the Stoppage of Perfpiration, rheu- 
matic Pains are caufed by too great Difeharges 
of thefe Secretions among the Fibres of the 
Mufcles, in the fame manner as was manifeft' 
ly to be feen in the Mufcles of thefe Dogs. 
2 6'. It has been obferved, on drinking a 
great Qiiantity of Water as three or four Pints 
at a Time, that all Parts of the Body and c- 
ven the Fingers have been dilated : In this cafe 
doubtlefs part of this great Qiiantity of Wa* 
ter, being not throughly incorporated With 
the Blood, paffes thus freely into the fecreto- 
ry Arteries and Lymphatics : The drinking 
of Waters fhould feem therefore to be of ufe 
in many kinds of Obftruftions in thefe VefTels. 
' 27. Since the Coats of thefe VefTels are 
found to be fo much weaker than thofe of the 
3 Arteries, 
