As to Navel-ill, much has been written on the deadliness of the complaint. I have never had any loss from it. Diarrhoea is a very common complaint with calves, and I have lost one or two by it, but, I believe, owing to carelessness. It will generally yield to a dose or two of castor-oil. The Knee-ill is more to be dreaded. The complaint is worse some seasons than others, and some, under the best treatment, will die. The calf gets down and is unable to rise; on examination it will be found that one or both, generally of the fore-legs, are very much swollen at the joints; the calf is very much pained, especially if moved, and the disease acts very much like rheumatic fever on the human body. I cannot assign any cause for this disease, as I have seen calves seized with it that were kept warm and comfortable. In some cases it may be attributed to some particular atmospheric influence. It is very difficult to remove. The calf will be down for weeks, and in some cases they never get up. Very little can be done for them, and any treatment I have seen adopted is of small value. Rubbing turpentine daily into the swollen joints is useful, but attention to the general health is of the greatest consequence--such as counteracting costiveness in the bowels, &c. I have seen splints of wood introduced, and also tying out the leg with bandages; but I have no great faith in any such treatment. Rubbing daily with turpentine, and attention to the general health, is all I can recommend. Costiveness of the bowels, if not counteracted, may end in serious consequences. I had a case of a calf that got very costive--so bad that it moaned dreadfully from pain. I lost all hope of saving it. I thought of injections, and had them administered repeatedly for hours; to my astonishment the calf recovered and did well. Castor-oil is the safest medicine for calves. Let me here record an observation for which I am indebted to Mr Sorely, late veterinary surgeon, Alford. (While I have seen some with as good hands as Mr Sorely, I have never had the fortune to meet another with as clear a head.) The first question he asks when told that a calf is ailing, is, "How old is it?" If the calf is very young, and violently ill of any complaint, the great chance is, that it will not recover; whereas, if it be three weeks, and, still more, two or three months old, the probability is that it will.