TREATMENT.—Remove the cause, if possible. Then inject ten to fifteen drops of the following solution: Mild Chloride of Mercury, fifteen grains; Lime Water, four ounces. Shake well and apply to the ear as above mentioned two to three times a day. Place a small piece of cotton in the ear after each injection. Also place a hood over the ears or bandage them down with a cloth. CATARRH (_Cold in the Head_) CAUSE.—The most common, perhaps, is exposure, especially after a dog has been used to warm closed quarters. Dogs used for hunting purposes, when in a poor condition, with their system weakened, are often victims of Catarrh. SYMPTOMS.—Slight dullness. May not take food very well, hair standing to some extent, pulse not much affected, throat becomes sore. After the congestion passes off, exudation takes place, followed by discharge and it may be very profuse, but it need not alarm you. There is generally impaired secretion of urine, but breathing not much affected in most cases. We also have a discharge from the nose in other diseases, such as Distemper, Bronchitis, Pneumonia, etc. TREATMENT.—The treatment should be constitutional as well as local. Place the animal in clean, well-ventilated quarters; feed good nourishing food, which is quite important. The following prescription is very beneficial in suppressing the secretion from the nostrils: Ferri Hypophosphitis, five grains; Quinine Sulphate, three grains; Pulv. Nux Vomica, two drams; Arsenous Acid, one-half grain. Make into twelve capsules and give one capsule two or three times a day. Give inhalations of steam from hot water and Oil of Eucalyptus for one-half hour twice daily. Permit the dog to exercise if the weather is favorable. If constipated give rectal injections and feed laxative food. Avoid giving physics in Catarrh, especially if there is fever present. CHOREA (_St. Vitus Dance_) CAUSE.—Due to an irritation of the nervous system. It is especially associated with debility, although it may follow constitutional diseases, such as Distemper, etc. It is sometimes caused by a direct injury to the brain or spinal cord. SYMPTOMS.—A continuous twitching of the muscles which is noticeable even though the animal sleeps. The muscles of the head may be affected, or those of one or both fore limbs or of a hind limb. An animal affected with Chorea will show an unsteady gait when walking and usually becomes very poor, although it will have a very good appetite at all times.