Etherum. Ethyl oxide. Ethylic Ether, sometimes called Sulphuric Ether. (C2H5)2O (Alcohol is C2 H6O).   Clinical.-Bronchitis. Catalepsy. Convulsions. Cough. Delirium tremens. Hiccough. Mania. Meningitis. Nausea. Vomiting.   Characteristics.-Ether is the