Under the first head we shall often discover, upon inquiring into the history of the case, that for a length of time, varying from months, perhaps, to years, the animal had been affected with a swelling which would gather, break, and slowly heal, leaving no mark as an apparent indication of a diseased condition, excepting that a certain degree of lameness would have been observed to be present. Upon exploring the testicular region it would then be observed to be the seat of a tumor, either spherical or pysiform, seldom painful, and more or less adherent to the envelope that covered it. Above this the end may be felt free from diseased process, and this is the champignon in its chronic form. In this condition it is not incompatible with the general health of the animal affected, and forms no hindrance to his usefulness. This condition of extra-inguinal growth will sometimes dissolve away by an abscess-formation, and quite disappear. But if the induration of the spermatic cord extends to the upper portion, or that which is enclosed in the inguinal canal, in such a manner as to interfere with locomotion, the leg corresponding with the diseased side being carried in abduction, with numerous fistulous tracks existing on the surface of the scrotum, the intensity of the symptoms varying with the extent of the diseased process, the condition of the cord will be easily discovered by an examination of the parts, and the presence of an _intra-inguinal champignon_ established. If, besides these symptoms, we discover by rectal examination that there is in front of and above the pubes a tumor more or less ovoid, or giving the sensation of a cylindrical mass, of size varying to the touch--which is the diseased indurated cord--the case is judged at once to be one of _intra-abdominal_ nature. At times the inflammation may extend to the sub-lumbar region, when the hand introduced into the rectum may discover in that locality an ovoid tumor or abscess which may be of great size. This form of champignon is incomparably the most serious of them all; an intense and persistent reactive fever is always present, and this at length terminates together the life and suffering of the animal. The abscess may sometimes open externally, and in some cases it may accumulate within the thickness of the cord and form large collections; or, again, it may find its way into the abdominal cavity, where it may excite a fatal peritonitis. This rapid examination of the various forms of deep champignon will enable us easily to realize the difficulty of the progress in the case. While the pedunculated form, exterior to the scrotum, is not, comparatively, a very serious matter, it becomes, on the contrary, a very grave occurrence when it assumes the characters of the intra-abdominal variety, and must in a majority of cases be recognized as an incurable disorder.