It is not often a rabid dog will attack his owner unless the person tries to restrain him; but he will generally go for a stranger without hesitation or provocation. Rabies cannot arise spontaneously, or from any other cause whatever but inoculation by a bite from a dog suffering from the disease. The inoculative period varies from a fortnight to six weeks; it has been known to extend for three months. There is no doubt that the saliva from a rabid dog’s mouth, going into the eye of another dog, would in all probability induce the disease. _Treatment_: There is no cure for this disease. Directly it is established, the dog should at once be destroyed, and shooting is the best and safest way of destroying such an animal. I wish to dispel the idea which so many people have, that if a dog bites another, or even a person, and that dog should ever go mad, the dog and also the person will go mad too; such a thing is impossible, even though the disease may be lying latent in the dog the time he inflicted the bites. Pasteur, who was a great authority on rabies, used to say that a bite from a dog, even two days before there were any visible symptoms of the disease observed, was not dangerous. =Ranula=: _Symptoms_: A large, bladder-like swelling under the tongue, which prevents the dog eating properly. Saliva, as a rule, flows freely from the mouth, and in some cases the dog is unable to close the teeth together. The cause, in some cases, is due to some blockage of the duct of the gland which is situated under the front part of the tongue. _Treatment_: A probe passed through the duct generally allows the accumulated fluid to escape, but in some cases the fluid in the swelling has become so thick that it cannot escape through the natural passage, even though cleared with a probe; then the sac should be freely opened, and after squeezing out its contents, the cavity should be syringed well out with a solution of boracic acid—a teaspoonful of the acid to half a pint of warm water. =Redness of Skin=: _Symptoms_: A flushed or red condition of the skin often occurs in white dogs. It is particularly noticed on the inside of the flaps of the ears, the inner side of the thighs and skin of the belly, or it may be general. The redness disappears on pressure, but returns when pressure is removed. _Treatment_: Dust the part over three or four times a day with finely-powdered boracic acid. Treat dog for worms, and give some tonic medicine, as following pills:— _Recipe_: Sulphate of Iron, 6 to 24 grains.[1] Sulphate of Quinine, 3 to 18 ” Confection of doses, _q.s._ Mix. Divide into 12 pills—one to be given twice a day. A mild saline aperient should be given once a week. =Respiration (Artificial)=: