SECT. XXVII. 2. OF HEMORRHAGES. 34, 



ted to lofe blood from the arm on the fticceeding 

 day. 



Query, might not the cold bath inftantly (lop 

 hemorrhages from the lungs in inflammatory cafes? 

 for the fhortnefs of breath of thofe who go fud- 

 denly into cold water, is not owing to the accumu- 

 lation of blood in the lungs, but to the quiefcence 

 of the pulmonary capillaries from aflbciation, as 

 explained in Seclion XXXII. 3. 2. 



II. The other kind of hemorrhage is known 

 from its being attended with a weak pulfe, and 

 other fymptoms of general debility, and very fre- 

 quently occurs in thofe, who have difeafed livers, 

 owing to intemperance in the ufe of fermented 

 liquors. Thefe conftitutions are (hewn to be lia- 

 ble to paralyfis of the lymphatic abforbents, pro- 

 ducing the various kinds of dropfies in Section 

 XXIX. 5. Now if any branch of the venous fyf- 

 tem lofes its power of abforption, the part fwells, 

 and at length burfts and difchargesr the blood, 

 which the capillaries or other glands circulate 

 through them. 



It fometimes happens that the large external veins 

 ofvthe legs burfl, and effufe their blood; but this 

 occurs mod frequently in the veins of the inteftines, 

 as the vena portarum is liable to fuffer from a fchir- 

 rus of the liver oppofmg the progreffion of the 

 blood, which is abforbed from the inteftines. 

 Hence the piles are a fymptom of hepatic obftruc- 

 tion, and hence the copious difcharges downwards 

 or upwards of a black material, which has been 

 called melancholia, or black bile ; but is no other 

 than the blood, which is probably difcharged from 

 the veins of the inteftines. 



J. F. Meckel, in his Experimenta de Finibus 

 Vaforum, publifhed at Berlin, 1772, mentions his 

 difcovery of a communication of a lymphatic veflel 



-with 



