Acts powerfully upon the vegetative nervous system and upon the blood, tending in each to disorganization and destruction, which is manifest more especially in the paralysis consequent upon the destruction of nerve force, and in the disorganization and decomposition of organic substance, consequent upon the modification of the blood life. The first condition produced is one of violent erethism, going on to congestion and inflammation, this soon giving way to a condition of torpor and paralysis, which may indicate exudations in parenchymatous organs, or decomposition of the blood and of organic tissues, including the brain, spinal marrow, and the bones. The most essential action of Phosphorus is upon the blood, the maxillary bones, the lungs, and the teeth. The character of this action has already been indicated. In the blood, as a result of the decomposition, there are haemorrhages and ecchymoses ; in the maxillary bones and the teeth caries and necrosis, and in the lung tissues sanguinous infiltration, while in various organs and tissues there is fatty degeneration, notably in the liver and heart. The special action of Phosphorus on each of the separate tissues and organs of the body may only be studied in the careful provings which Hahnemann and his immediate followers have left us. Characteristic symptoms.