258 
SUPFURATIVE LARYNGITIS. 
I had the spleen and the larynx sent home, and having 
apprised my friend Mr. John Gamgee, that I possessed some 
interesting morbid specimens, he kindly assisted me in 
making a minute examination of them. 
We found that the spleen presented, on its anterior sur- 
face, towards the left side, the apex being free, a large tumour 
about ten inches long, and six inches broad. The whole 
weighed 15 lb. 3oz., being nearly five times its natural 
weight. The normal parts of it bore externally a perfectly 
healthy aspect, and were of a darkish violet colour. The 
tumour was fluctuating in parts, at others simply elastic. 
It was dense at its summit, but at the sides, fluctuation indi- 
cated the existence of pus ; which pus seemed to be immedi- 
ately under the thickened tunica albuginea. On manipu- 
lating the places where the covering was thinnest, the coats 
readily gave way, and thick creamy pus escaped. 
The peritoneal coat presented a considerable development 
of organized false membranes over an extent of surface six 
inches in diameter, and from this circumscribed peritoneal 
surface of the tumour, the substance of the spleen was swol- 
len out, insensibly diminishing all round to its normal thick- 
ness. 
I would here observe, that the anterior marked outline of 
the tumour was the posterior edge of the “hilum 5 ’ of the 
spleen, so that the anterior division of the inferior surface of 
the spleen seemed entirely free from disease. 
I made a plaster cast of this morbid specimen, and by the 
kind assistance of Mr. H. B. Tuson, who has painted it very 
faithfully, after a water colour by Mr. Gamgee, I am happy 
to say an exceedingly correct representation of the original 
has been obtained. The cast my worthy friend Mr. Gabriel 
has kindly undertaken to preserve for me in the Museum of 
the Royal College of Veterinary Snrgeons, Red Lion Square. 
The cast completed, we cut through the enlarged parts of the 
viscus, and found that the spongy structure was plugged up 
and filled with thick cheese-like pus. 
On examining the larynx, we found that the crico- 
arytenoidei-postici muscles were perfectly healthy, as well as 
the arytenoid muscles ; if there were any difference in bulk, the 
right posticus muscle was more developed than the left. On 
opening out the left wing of the thyroid cartilage, the crico- 
arytenoideus lateralis and the thyro-arytenoideus were seen 
to have a pale par-boiled appearance, and we had to remove 
a limpid jelly-like substance, contained in areolar tissue, 
before we could bring them well into view. 
We now exposed the lining membrane of the larynx, by 
