Zincum Phosphoricum. Phosphide of Zinc. Zincic Phosphide. Zn3P2. Trituration.   Clinical.-Brain-fag. Delirium tremens. Headache. Herpes zoster. Impotence. Kidneys, irritable. Neuralgia. Paralysis. Sleeplessness. Tremors, mercurial.   Characteristics.-Ashburton Thompson gave pills, each