=Intestine.= The intestinal mass is contained in the right half of the abdomen above the compartment of the stomach. The large intestine occupies the upper zone, corresponding externally with the hollow of the flank from the thirteenth rib to the haunch. The small intestine occupies the middle zone from the thirteenth rib to the entrance to the pelvis and the stifle region; the inferior zone is occupied by the rumen and abomasum, and in pregnant females by the gravid uterus. Notwithstanding these indications it is somewhat difficult to examine the mass of the large intestine, separated as it is from the abdominal wall by the =U=-shaped inflection of the duodenal loop, of which the deep retrograde branch is in contact with the terminal portion of the floating colon. Inspection of the right flank furnishes no information of value in diseases of the intestine, nor is auscultation of much service beyond enabling one to detect the frequency, diminution, or absence of borborygmus. Palpation alone is really of service. Practised gently and superficially with the tips of the fingers it detects abnormal sensibility in acute cases of enteritis; when with more energy, palpation reveals whether the bowel be full or empty, provided that the muscular resistance be not too marked. =Colic.= In colic the clinical signs, their varieties, and the lesions which give rise to them are of much more importance. When it results from intestinal congestion _à frigore_ (due, for example, to the ingestion of cold water), colic is usually violent, sudden, and of relatively short duration. In other cases it is violent and prolonged for several hours, a whole day, or even two days, and may be followed by coma and suppressed peristalsis; it then indicates invagination, volvulus, or strangulation. Sometimes, on the contrary, it remains dull and is slow and continued (acute gastro-enteritis, hæmorrhagic gastro-enteritis, etc.). Finally, colic of the latter character may, in addition, be accompanied by icterus, in cases of retention of bile, biliary calculi, hepatitis, etc. =Anus.= Examination of the anus is easy. Simple inspection reveals its presence or absence, and consequently the existence of congenital rectal atresia, which is somewhat common in calves and colts. Digital exploration is, however, sometimes useful, for in occasional cases an anus may exist, which externally appears normal, but terminates in a sac, the rectum being closed by a membranous partition. Nothing is easier to recognise than tenesmus; it occurs in cases of profuse diarrhœa, diarrhœa of calves, and dysentery in newly-born animals. [Illustration: $1]