384 RETROGRADE ABSORBENTS. SECT. XXIX. 5. 



for the fluid in the cells of the lungs to change 

 its place, fo as the leaft to incommode refpiratiorj 

 in the new attitude ? 



4. In the dropfy of the pericardium (Joes not the 

 patient bear the horizontal or perpendicular atti- 

 tude with equal eafe ? Does this circumftance dif- 

 tinguifh the dropfy of the pericardium from that of 

 the lungs and of the thorax? 



5. Do the univerfal fweats diftinguifh the dropfy 

 of the pericardium, or of the thorax? and thofe, 

 which cover the upper parts of the body only, the 

 anafarca of the Jungs? 



6. W hen in the dropfy of the thorax, the patient 

 endeavours to. lie down, does not the extravafated 

 fiui comprefs the upper parts of the bronchia, and 

 to- ally preclude the accefs of air to every part of 

 the lungs ; whilft in the perpendicular attitude the 

 inferior parts of the lungs only are comprefled f 

 Docs not fometbing fimilar to this occur in the 

 anafarca of the lungs, when the difeafe is very great, 

 and thus prevent thofe patients alfo from lying 

 down ? 



7. As a principal branch of the fourth cervical 

 nerve of the left fide, after having joined a brancl> 

 of the third and of the fecond cervical nerves, de- 

 fcending between the fubclavian vein and artery, 

 is received in a groove formed for it in the peri- 

 cardium, and is obliged to make a confiderable 

 turn outwards to go over the prominent parj: of it, 

 where the point of the heart is lodged, in its courfe 

 to the diaphragm j and as the other phrenic nerve 

 of the right fide has a ftraight courfe to the dia- 

 phragm ; and as many other confiderable branches 

 of this fourth pair of cervical nerves are fpread ori 

 the arms ; does not a pain in the left arm diltin- 

 guifh a difeafe of the pericardium, as in the angina 

 pe&oris, or in the dropfy of the pericardium ? and 



does 



