duce more
secretions, and heat, and consequent tumour, and inflammation. In this
state the pain of the diseased tooth ceases; as the sensorial power of
sensation is now expended on the inflamed vessels of the cheek. It is
probable that most other internal membranous inflammations begin in a
similar manner; whence there may seem to be a double kind of sensitive
association; first, with decreased action of the associated organ, and then
with increased action of it; but the latter is in this case simply the
consequence of the former; that is, the tumor or inflammation of the cheek
is in consequence of its previous quiescence or torpor.

2. _Stranguria a dolore vesicae._ The strangury, which has its origin from
pain at the neck of the bladder, consists of a pain in the external
extremity of the urethra or of the glans penis of men, and probably in the
external termination of the urethra or of the clitoris of women; and is
owing to the sympathy of these with some distant parts, generally with the
other end of the urethra; an endeavour and difficulty of making water
attends this pain.

Its remote cause is from the internal or external use of cantharides, which
stimulate the neck of the bladder; or from a stone, which whenever it is
pushed into the neck of the bladder, gives this pain of strangury, but not
at other times; and hence it is felt most severely in this case after
having made water.

The sensations or sensitive motions of the glans penis, and of the
sphincter of the bladder, have been accustomed to exist together during the
discharge of the urine; and hence the two ends of the urethra sympathize by
association. When there is a stone at the neck of the bladder, which is not
so large or rough as to inflame the part, the sphincter of the bladder
becomes stimulated into pain; but as the glans penis is for the purposes of
copulation more sensitive than the sphincter of the bladder, as soon as it
becomes affected with pain by the association above mentioned, the
sensation at the neck of the bladder ceases; and then the pain of the glans
penis would seem to be associated with the irritative motions only of the
sphincter of the bladder, and not with the sensitive ones of it. But a
circumstance similar to this occurs in epileptic fits, which at first are
induced by disagreeable sensation, and afterwards seem to occur without
previous pain, from the suddenness in which they follow and relieve the
pain, which occasioned them