[ 8i ] 
It being evident from this, that there was in the 
thorax of this young woman a receptacle of ferofity 
(if I may fo call it) contiguous to the found lobe, it 
will not appear ftrange that, from the violent agita- 
tion caufed by the Tinging and dancing, the bag burft, 
and that the found lobe, which alone ufed to perform 
the office of breathing, being hindered, by the ferous 
matter which came out, from exerting its influence, a 
fuffocation enfued. The caufes of her habitual dif- 
order are equally obvious. In a perfe(5l flate of health 
there fhould be two lobes, which together receive the 
blood from the right flde of the heart, and tranfmit 
it to the left, reducing it in this journey, by their 
joint a(5lion, to a ftate of perfection. One of the 
lobes therefore being wanting, the other muft have en- 
dured confiderable pain in receiving the whole quan- 
tity of blood from the heart, and whenever violent ex- 
ercife made a quicker circulation neceffary, the blood 
mufl: have been flopped, and hence arofe the afore- 
mentioned ffiortnefs of breath. Nor is it lefs clear 
how the cough came to be fo frequently troublefome, 
the motion of the fluids being difturbed, and the de- 
licate fibres of the trachea perpetually irritated by 
this defeCl. And this is the true reafon why her 
menflrua being very plentiful were for fom.e time 
very benefleial to her, by caiffing a great diminution 
of blood, and leaving a cjuantity of fluids in the veins 
more proportioned to the canals of a Angle lobe. 
Thefe things, from the difleCtion of the body, are 
evident enough, but it ftill muA feem wonderful to 
have found a young woman without one of the lobes, 
that bag of ferous matter containing nothing in it which 
VoL. LV. M could 
