Where is the pathogenesis of Aurum found ? In Hahnemann's Materia Medica Pura ; Chronic Diseases ; Burnett's Monograph, Gold in Disease . How do we prepare Gold ? By triturations of the precipitated metal. Give the general action of Aurum. Aurum acts upon the glandular system, affecting especially the liver and testicles. It also has a prominent action upon bones, especially the palatine bones, producing caries and exostosis. It is also a valuable remedy in affections of the sexual organs of both sexes. What is a general characteristic of Aurum which runs all through its pathogenesis ? Hyperaemia and congestion. These will account for many of its symptoms. What are the mental symptoms of Aurum ? Disgust for life, a longing for death and a tendency to suicide ; this tendency is only mental, for the patient rarely attempts it ; there is a feeling of worthlessness and despair, the patient thinks he is damned. Give the eye symptoms of Aurum. Syphilitic iritis after the abuse of Mercury ; ulceration of the cornea and intense photophobia ; double vision and half vision, in which the lower half of objects can be seen. What is the catarrh of Aurum ? Fetid nasal discharge with caries of the bones of the nose ; boring pains in he bones of the nose at night. In what affection of the bones is Aurum indicated ? In caries of the bones, of mercurial origin, with offensive discharge and odor. Especially useful in caries of the nasal bones, turbinates and palate.