198 
Mr. Home's Account of a small Lobe 
knowledge of the extent of the disease until the month of 
December, 1805. 
At that time my attention was directed to this subject by 
the following circumstances. In the examination of the pros- 
tate gland of an elderly person, who had died in consequence 
of this part having been diseased, the nipple-like process was 
found very prominent, and a bridle, nearly ~ of an inch in 
breadth, extended from the middle line of the tumour to the 
bulb of the urethra, where it insensibly disappeared. The 
usual rounded projection of the caput gallinaginis was not 
visible : it had wasted away, and the remains were concealed 
in the fold forming this bridle, which at that part was not 
thicker than at any other. The space between the tumour in 
the bladder, and the bulb of the urethra was unusually short, 
which is the reverse of what is commonly met with in old 
men ; so that this bridle appeared to have drawn the bulb to- 
wards the tumour, and shortened the membranous part of the 
canal. 
As this was an unusual appearance, it led me to consider it 
with attention, and to ask if other anatomists had noticed it ; 
which as far as my inquiries have gone has not been the case. 
The bridle had evidently been formed by the membrane of 
the bladder adhering firmly to that part of the prostate gland 
composing the tumour, which it consequently followed in its 
future increase, and drew up after it the membrane of the 
urethra. In this way the fold had in time become nearly ~ 
of an inch broad, and was continued of the same breadth to 
the bulb, where the lining of the urethra being more at- 
tached to the surrounding parts, it did not admit of being 
drawn up. 
