There are some popular errors, which are corrected by the following statements, thus: Dogs may become mad at any season of the year. Female and altered dogs may become mad by communication, though the disease originates, probably, with entire animals. Mad dogs drink in all stages of the disease, if the soreness of the throat, or paralysis of the jaws, or flow of saliva does not prevent them; they have even been known to swim in water. Mad dogs do not always carry the tail between the legs, but otherwise, during the commencement of the disease; it is however, common in many other diseases, and in all dogs when pursued or frightened. Mad dogs do not always run in a straight line, unless pursued; they change their direction like other dogs, and run to objects which attract them. Other dogs do not avoid them, but if a stranger, it will be attacked by well dogs. Sound animals have no repugnance to the saliva of a mad dog, but will even eat meat which is covered with it. TREATMENT.—All the means hitherto discovered to arrest the disease have proved unreliable. BELLADONNA and the A.A., may do something, and had best be administered in all doubtful cases: but if an animal is indisputably rabid, it should be killed at once. The excision of the gland or ligament under the tongue is only mutilating the animal to no purpose. If a dog is suspected, or has been bitten, or exposed to contagion, give him the A.A., three or four drops, according to his size, three times per day, and inject a dose of the same medicine into the wound at the same time. Only a small proportion of the animals or persons bitten by animals supposed to be rabid ever become mad. CHAPTER III.—PART IV. DISEASES OF THE EYES, EARS, NOSE, ETC. Inflammation of the Eye, Ophthalmia It may arise from a variety of causes, such as congestion of the brain; exposure to heat and cold; over-exertion; blows or other injuries; over-salted food, infection, foreign bodies, etc. SYMPTOMS.—The white of the eye is covered with red streaks; the clear portion in front (pupil) is dim; water runs down the face; the light cannot be endured and the eyelid is closed. An ulcer may appear afterwards in the front of the eye, and it may go on until it penetrates through the outer coating of the eye (cornea), and the fluids of the eye thus escape. In some cases proud flesh springs up from these ulcers. TREATMENT.—The A.A., should be given, a dose of two drops only, two or three times per day. This in general will be sufficient for all forms of ophthalmia; but if the case is of some standing, or if ulcers or degenerations have taken place, two drops of I.I., may be given every night, and the A.A., in the morning. A wash of HUMPHREYS’ MARVEL WITCH HAZEL, diluted one-half with soft water, will promptly relieve. Amaurosis, Gutta Serena