Occasionally seen in dogs, and often congenital. The tongue protrudes, becomes dry and often cracks. The dog experiences little inconvenience and laps with ease. If cracks appear on the tongue, apply a little boracic acid ointment, which is non-poisonous, while a little sweet oil on the tongue will prevent the dryness. A nerve tonic should be given, 5 to 20 drops, as per sized dog, of the tincture of Nux Vomica, with 1/2 grain to 1 grain of quinine, is a very good thing to use now, given in water twice daily after food.