I 545 1 
L A letter from Mr Buificw, F R- concern^ 
inga Sub fiance^ cough d up refembling thevef- 
feh of the 
SIR, 
T TEte is aci obfervation which will prove howufe- 
X J ful the opening dead bodies to PhyGcians 
arid Surgeons, 
A Boy of 5 years old dy*d at Kenfington of a dry Q)ugh 
and Confumption 5 a year before he dy'd he was troubled 
with a dry'dCough, which con tinu'd ever fince^fpitting . 
now and then a little quantity of blood 3 ten or twelve 
days before he dyed , his Nurfe took notice of fome 
thick skin , as (he faid , he fpit out. His Phyfician 
having. examined one of them, found it had the con- 
fiftence and fliape of a Veflel, which made him think it 
might perhaps be fome Veflel of the Lungs, fuch as> 
r^/pi/^x mentioneth of fome that have fpic out the 
Veins of their Lungs^ (Tulpii obfavationes UL 2. ohferv. 
12. 14^ The Child being dead, I was fent by his 
Relations to open the body. I began by the Abdomen^ 
in which I found nothing of moment, except that the 
was quite deftitute of fat, fo were likewife all 
the parts of the body, the glandules of the Mefintermm^ 
were hardned and blackifla. 
Then I did open the Breaft, the parts whereof didl 
look at firft very found, thoin theleftTide of the Lungs = 
I found a little purulent Sanies, after which I did diffttt 
the Trachea. Arteria^ihQ infide of which I found incrufta-' 
ted with a Aim y membrane, which I took oflf from the 
Tracheajmd thQ Branches in the Lungsinfomucfa^that that 
