( 191 ) 
L Av Account of a Polypus taken out of the Vnena Piilmoalis, 
and of the firuSure of that VeJfeL Bj Will. Cowper, RRS. , 
I Send yon herewith the account and Figure of a Polj- 
pusj which I took out of a Cmld of about a year old. 
Its firft obfervable dilbrders were a quick Polfe, and adii- 
fifculty oi Breathing. In about four days the Gums were 
obferv'd to be fweird. for which they were cut, and ail 
fymptoms difappear'd for five or fix hours, after wiiich 
they return d. Notwithfi:anding Blood letting, and tne 
application of other Remedies, the DifBcuhy ot Breach- 
ing encreas'd, the Pulfe became ftill lower and quicker., 
and in four days more the Child dyed. 
The Body was open'd, and. the Vifcera of the lower 
Belly were found well conftituted 
In the Thorax the Thymus exceeded the natural fize even 
in Children. The fore part of the Lungs appeared to be 
well difpos'd, but the back parts were very hard, and 
much inflam'd. Making Incifion on the difeas'd part. 
Purulent matter followed the Knife in fuch quantity from 
divers Cells, that it fiU'd the wrounds as fail as made, and 
pieces cut from it funk in water. But as we approached 
nearer to the parts unafFeded, the pieces became gradual- 
ly more buoyant^ till at length we came to the fore part, 
which floated. 
The Cavities of- the right Auricle and Ventricle of the. 
Heart were fiird with a Polypus, which was continued 
into the fuperiour and inferiour Trunk of the Vena Cava. 
^Opening the Fena Pulmonarh at the Ba^s of the Heart, 
j found it there compleatly fiU'd with a Polypus (or co- 
agulation of Blood ) which was continued into all the 
large branches of it in rhe Lungs, and were eafily drawn 
out, and when difplay'd, , appear d as exprefs'd Fig. IlL 
This Polypiis vJAbrds us a better Iciea of the contrivance 
and i^rufi-ur ; of the Pulmonary Vein t.:an any Figures of 
that Vefie! yeipuhliiht : For tho in diiFerent Aibjeds of 
die fame Ipec^es wc meet wua free icnc v;,;' ties in thede- 
ftribution of lac Biuod-vdkls, eipci; ' oi ihe Vein 
we no where huu ci. more conftanc il.^ J.:nty and Lini< 
fbr^- 
