SECT. XXVII. i. OF HAEMORRHAGES. 359 



mud unavoidably exift, if the circulation in them 

 was owing to the intermitted force of the arteries. 

 Secondly, the venous abforpdon of blood from the 

 penis, and from the teats of female animals after 

 their erection, is ftill more fimilar to the lymphatic 

 abforption, as it is previoufly poured into cells, 

 where all arterial impulfe muft ceafe. 



There is an experiment, which feems to evince 

 this venous abforption, which confifts in the exter- 

 nal application of a ftimulus to the lips, as of vine- 

 gar, by which they become inftantly pale, that is, 

 the bibulous mouths of the veins by this ftimulus 

 are excited to abforb the blood fader, than it can 

 be fupplied by the ufual arterial exertion. See 

 Sed. XXIII. 5. 



There are two kinds of haemorrhages frequent in 

 difeafes, one is where the glandular or capillary 

 action is too powerfully exerted, and propels the 

 blood forwards more hafUly, than the veins can 

 abforb it; and the other is, where the abforbent 

 power of the veins is diminifhed, or a branch of 

 them is become totally paralytic. 



The former of thefe cafes is known by the heat 

 of the part, and the general fever or inflammation 

 that accompanies the haemorrhage. An haemorr- 

 hage from the nofe or from the lungs is ibmetimes a 

 crilis of inflammatory difeales, as of the hepatitis 

 and gout, and generally ceafes fpontaneoufly, when 

 the veflels are confiderably emptied. Sometimes 

 the haemorrhage recurs by daily periods accompa- 

 nying the hot fits of fever, and ceafing in the cold 

 fits, or in the intermiffions ; this is to be cured by 

 removing the febrile paroxyfms, which will by 

 treated of in their place. Otherwife it is cured by 

 venefe&ion, by the internal or external preparations 

 of lead, or by the application of cold, with an ab- 

 ftemious diet, and diluting liquids, like other in- 

 flammations. 



