_Symptoms._--The symptoms are the swelling of one or more joints, which are very hot and tender. The calf is stiff and lame, lies down constantly, and does not care to suck. There is very high fever, accelerated breathing and pulse, and there is swelling and purulent discharge (often fetid) from the navel. There may be added symptoms of disease of the liver, lungs, heart, or bowels, on which we need not here delay. The important point is to determine the condition of the navel in all such cases of diseased and swollen joints beginning in the first month of life, and in all cases of general stiffness, for besides the diseases of the internal organs there may be abscesses formed among the muscles of the trunk, though the joints appear sound. Cases of this kind, if they do not speedily die, tend to become emaciated and perish later in a state of weakness and exhaustion. _Prevention._--Prevention must begin with the purity of the buildings and the navel, as noted in the last article. _Treatment._--Treatment is in the main antiseptic. The slighter forms may be painted daily with tincture of iodin, or an ointment of biniodid of mercury (1 dram) and lard (2 ounces) may be rubbed on the affected joints daily until they are blistered. In case of swellings containing matter, this may be drawn through the nozzle of a hypodermic syringe and the following solution injected: Compound tincture of iodin, 1 dram; distilled (or boiled) water, 2 ounces. Internally the calf may take 5 grains quinin twice daily and 15 grains hyposulphite of soda, or 20 grains salicylate of soda three times a day. UMBILICAL HERNIA (BREACH AT THE NAVEL). This may exist at birth from imperfect closure of the muscles around the opening; it may even extend backward for a distance, from the two sides failing to come together. Apart from this, the trouble rarely appears after the calf has been some time on solid feed, as the paunch then extends down to the right immediately over the navel, and thus forms an internal pad, preventing the protrusion of intestine. _Symptoms._--The symptoms of umbilical hernia are a soft swelling at the navel, with contents that usually gurgle on handling, and can be entirely returned into the abdomen by pressure. The diseases of the navel hitherto considered have no gurgling contents and can not be completely returned into the abdomen. The only exception in the case of the hernia is when the walls of the sac have become greatly thickened. These will, of course, remain as a swelling after the bowel has been returned; and when the protruding bowel has contracted permanent adhesion to the sac, it is impossible to return it fully without first severing that connection. _Treatment._--Treatment is not always necessary. A small hernia, like an egg, in a new-born calf, usually recovers of itself as the animal changes its diet to solid feed and has the paunch fully developed as an internal pad.