Dorema ammoniacum, Don. Nat. order , Umbelliferae. Common names , Gum ammoniac; (Persian), Oschak or Kandal. Preparation , Trituration of the gum, or solution in water. Authorities. [Nos 1 to 5 , Buchner's provings Hygea, 18, 212 and 22, 264 (translated in Shipmans Journal); No 6 , Inaugural Dissertation, Leipzig, 1837 (A. H. Z., 12, 230), No 7 , in Hufeland's Journal, 1800 (A. H. Z., 9, 287); 8, in Burgrave de Aere, etc.] 1 a , 32 grains in 3 ounces of water; 1 b , same repeated; 1 c , effects of fumes of the fluid distilled from the gum; 2 , woman, 42 years old, 30-40 drops aqueous solution; 3 , man, 26 years old, 12-18 grains; 4 , "A," 1-30 grains, triturated; 5 , "B," 2-15 grains in substance; 6 , Jähnel, 1-40 grains; 7 , Wichmann; 8 , Stieglitz.